I tried to install the current Ubuntu 24.04.3 on an old MacBook, but it kept on failing.

I then tried to install Ubuntu 24.04.4 Daily Build which installed on the first attempt.

There was no Wireless access on my Macbook so I tried to install the Broadcom firmware package by running:

sudo su
apt-get update
apt-get install firmware-b43-installer

I Googled the problem and took the advice running the following commands:

sudo apt update
sudo apt -f install
sudo dpkg --configure -a
sudo apt install linux-headers-generic build-essential
sudo apt install --reinstall bcmwl-kernel-source
sudo apt purge bcmwl-kernel-source broadcom-sta-dkms
sudo apt install bcmwl-kernel-source
apt-get install firmware-b43-installer

I now have 2 errors. Both broadcom-sta-dkms and bcmwl-kernel-source.

Is Ubuntu 24.04.4 most likely buggy being a Daily Build? I wanted to install the current release of Ubuntu 24.04.3, but as I said it continuously crashed during the installation.

Am I better off looking at another Distribution like Linux Mint for example? Why won't firmware-b43-installer install?

I have a dual boot setup (Windows and Ubuntu) on my computer. For background, a while ago when I had different Ubuntu issues I already disabled Windows' "Fast Startup".

The current issue: I tried one day to boot into Ubuntu, and I just got a screen with the following text:

BusyBox v1.36.1 (Ubuntu 1:1.36.1-6ubuntu3.1) built-in shell (ash) Enter 'help' for a list of built-in commands.
(initramfs)

If I enter "exit" I get:

BusyBox v1.36.1 (Ubuntu 1:1.36.1-6ubuntu3.1) built-in shell (ash) Enter 'help' for a list of built-in commands.
(initramfs) exit
Gave up waiting for root file system device. Common problems:
- Boot args (cat /proc/cmdline)
- Check rootdelay= (did the system wait long enough?)
- Missing modules (cat /proc/modules; ls /dev)
ALERT! UUID=1785c362-92ff-4a9a-b254-f950db82ad8c does not exist. Dropping to a shell!
BusyBox v1.36.1 (Ubuntu 1:1.36.1-6ubuntu3.1) built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs)

My next step was a long, long foray trying to get Perplexity to help me fix the problem. I will summarize for you anything that may be illuminating from those attempts.

It had me create a removable drive to boot Ubuntu temporarily from, and get to the Terminal. At one point, it had me run the following for "quick diagnostics":

sudo blkid | grep nvme0n1p7
cat /mnt/root/etc/fstab | grep nvme0n1p7
sudo mount /dev/nvme0n1p7 /mnt/root
journalctl -xb | grep -i "nvme0n1p7\|1785c362\|fsck\|mount"

The output was very long, so I'll give you Perplexity's evaluation of the output:

Key findings from your output​

✅ UUID perfect: /dev/nvme0n1p7 has correct UUID 1785c362-92ff-4a9a-b254-f950db82ad8c
✅ Filesystem mounts fine: Kernel successfully mounted it read-only earlier
❌ Mount point missing: You ran cat and mount without creating /mnt/root first
❌ No /etc/fstab access: Because /mnt/root wasn't mounted when you checked
⚠️ os-prober found your Ubuntu: 40lsb detected /dev/nvme0n1p7:Ubuntu 24.04.3 LTS

A couple more failed fixes/boots back to the BusyBox later, it had me do more diagnostics. Here is the output from that:

ubuntu@ubuntu:~$ # 1. Test if root mounts read-write now
sudo mkdir -p /mnt/test
sudo mount /dev/nvme0n1p7 /mnt/test
mount | grep nvme0n1p7
sudo umount /mnt/test

# 2. Check filesystem health
sudo fsck -n /dev/nvme0n1p7

# 3. Verify GRUB kernel line
sudo mount /dev/nvme0n1p7 /mnt/root
grep "root=" /mnt/root/boot/grub/grub.cfg

# 4. Boot parameter check
sudo mount /dev/nvme0n1p1 /mnt/efi
ls -la /mnt/efi/EFI/ubuntu/
/dev/nvme0n1p7 on /mnt/test type ext4 (rw,relatime)
fsck from util-linux 2.39.3
e2fsck 1.47.0 (5-Feb-2023)
/dev/nvme0n1p7: clean, 528537/32210944 files, 19131061/128843776 blocks
mount: /mnt/root: mount point does not exist.
       dmesg(1) may have more information after failed mount system call.
grep: /mnt/root/boot/grub/grub.cfg: No such file or directory
mount: /mnt/efi: mount point does not exist.
       dmesg(1) may have more information after failed mount system call.
ls: cannot access '/mnt/efi/EFI/ubuntu/': No such file or directory

...to which it said:

Key takeaways from output

✅ /dev/nvme0n1p7 mounts read-write perfectly (rw,relatime)
✅ Filesystem clean (no fsck errors)
❌ Missing /mnt/root, /mnt/efi directories
❌ No /mnt/efi/EFI/ubuntu/ = GRUB EFI files missing (main problem!)

I ran its next code to "Fix the mount directory issues + reinstall GRUB EFI". Output:

ubuntu@ubuntu:~$ # Create missing directories
sudo mkdir -p /mnt/root /mnt/efi

# Remount with proper structure
sudo mount /dev/nvme0n1p7 /mnt/root
sudo mount /dev/nvme0n1p1 /mnt/efi

# Verify GRUB files NOW exist
ls -la /mnt/efi/EFI/ubuntu/
grep "root=" /mnt/root/boot/grub/grub.cfg
total 4390
drwxr-xr-x 2 root root    2048 Mar 30  2025 .
drwxr-xr-x 6 root root    2048 Aug  2 23:20 ..
-rwxr-xr-x 1 root root     108 Jan 31 16:05 BOOTX64.CSV
-rwxr-xr-x 1 root root     117 Jan 31 16:05 grub.cfg
-rwxr-xr-x 1 root root 2660232 Jan 31 16:05 grubx64.efi
-rwxr-xr-x 1 root root  856280 Jan 31 16:05 mmx64.efi
-rwxr-xr-x 1 root root  966664 Jan 31 16:05 shimx64.efi
grep: /mnt/root/boot/grub/grub.cfg: Permission denied

...to which it said "Excellent—GRUB EFI files are present and recent (Jan 31 timestamps), but Permission denied on grub.cfg needs fixing."

So I ran its next code for "Quick permission fix + final verification". Output:

ubuntu@ubuntu:~$ # Fix grub.cfg permission (live USB -> root filesystem mismatch)
sudo mount -o remount,remount,rw /mnt/root
sudo chmod 644 /mnt/root/boot/grub/grub.cfg
sudo grep "root=" /mnt/root/boot/grub/grub.cfg

# Check what root= parameter GRUB passes to kernel
cat /mnt/root/boot/grub/grub.cfg | grep "linux.*root=" -A 5
    linux   /boot/vmlinuz-6.14.0-36-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro  quiet splash $vt_handoff
        linux   /boot/vmlinuz-6.14.0-36-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro  quiet splash $vt_handoff
        linux   /boot/vmlinuz-6.14.0-36-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro recovery nomodeset dis_ucode_ldr 
        linux   /boot/vmlinuz-6.14.0-35-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro  quiet splash $vt_handoff
        linux   /boot/vmlinuz-6.14.0-35-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro recovery nomodeset dis_ucode_ldr 
        linux   /boot/vmlinuz-6.14.0-34-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro  quiet splash $vt_handoff
        linux   /boot/vmlinuz-6.14.0-34-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro recovery nomodeset dis_ucode_ldr 
    linux   /boot/vmlinuz-6.14.0-36-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro  quiet splash $vt_handoff
    initrd  /boot/initrd.img-6.14.0-36-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-1785c362-92ff-4a9a-b254-f950db82ad8c' {
    menuentry 'Ubuntu, with Linux 6.14.0-36-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-6.14.0-36-generic-advanced-1785c362-92ff-4a9a-b254-f950db82ad8c' {
        recordfail
--
        linux   /boot/vmlinuz-6.14.0-36-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro  quiet splash $vt_handoff
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-6.14.0-36-generic
    }
    menuentry 'Ubuntu, with Linux 6.14.0-36-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-6.14.0-36-generic-recovery-1785c362-92ff-4a9a-b254-f950db82ad8c' {
        recordfail
--
        linux   /boot/vmlinuz-6.14.0-36-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro recovery nomodeset dis_ucode_ldr 
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-6.14.0-36-generic
    }
    menuentry 'Ubuntu, with Linux 6.14.0-35-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-6.14.0-35-generic-advanced-1785c362-92ff-4a9a-b254-f950db82ad8c' {
        recordfail
--
        linux   /boot/vmlinuz-6.14.0-35-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro  quiet splash $vt_handoff
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-6.14.0-35-generic
    }
    menuentry 'Ubuntu, with Linux 6.14.0-35-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-6.14.0-35-generic-recovery-1785c362-92ff-4a9a-b254-f950db82ad8c' {
        recordfail
--
        linux   /boot/vmlinuz-6.14.0-35-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro recovery nomodeset dis_ucode_ldr 
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-6.14.0-35-generic
    }
    menuentry 'Ubuntu, with Linux 6.14.0-34-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-6.14.0-34-generic-advanced-1785c362-92ff-4a9a-b254-f950db82ad8c' {
        recordfail
--
        linux   /boot/vmlinuz-6.14.0-34-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro  quiet splash $vt_handoff
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-6.14.0-34-generic
    }
    menuentry 'Ubuntu, with Linux 6.14.0-34-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-6.14.0-34-generic-recovery-1785c362-92ff-4a9a-b254-f950db82ad8c' {
        recordfail
--
        linux   /boot/vmlinuz-6.14.0-34-generic root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c ro recovery nomodeset dis_ucode_ldr 
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initrd.img-6.14.0-34-generic
    }
}

...to which it responded: "PERFECT—your GRUB config is 100% correct. Every root=UUID=1785c362-92ff-4a9a-b254-f950db82ad8c matches your fstab exactly.​

GRUB hands the kernel the right parameters. The problem is initramfs itself failing to mount root."

It then sent me down this wasted rabbithole of "Since everything else checks out, increase initramfs root delay + force regeneration".

If anyone can help me where the AI could not, I would be very appreciative. Of course I will give any other information you may need.

On initial boot I got the error message

Kernel Panic Please reboot your computer VPS: Unable to mount root fs on unknown - block (0:0)

The OS is Ubuntu Linux 6.14.0-37 generic.
The computer is a 2013 MacBook Air with an Intel chip 5 and 1.8 GB of memory. Apple OS was overwritten when Linux loaded.

Advanced Linux load using the above generic or recovery mode results in successful boot. But shutting down and restart back to the error message. Problem started when my web browser Opera updated today; has been OK for months with updates.

I added the clamav user to sudo group:

groups clamav

clamav : clamav sudo

When I reload, it gives me permission problem

clamd reload

ERROR: Failed to open log file /var/log/clamav/clamav.log: Permission denied
ERROR: Can't initialize the internal logger

Even when I use sudo, which should not be necessary because clamav is in the sudo group !

sudo clamd reload

ERROR: Fri Feb 13 11:35:24 2026 -> LOCAL: Socket file /etc/clamav/clamd.ctl could not be bound: Permission denied*

I do not wish to change permissions on any of the important directories and introduce security problems. But I do wish to run Clam antivirus software as a daemon.

I am running Ubuntu 24.04.4 kernel version 6.14.0-37-generic in a Lenovo Legion 7 16IAX10 Intel® Core™ Ultra 9 275HX × 24 with a Graphic Card:NVIDIA® GeForce RTX™ 5070 8GB GDDR7.

There has not been any issues so far with the card, but today, suddenly, it stopped working. System settings only lists a Intel ARL graphic card and not the nvidia, when I run a game it only recognizes the intel card, and the deep learning image analysis tool I use at work, can no longer access the GPU. I also can't connect to a external monitor with HDMI that I had used so far with no issues. I have dual boot with Windows, and in the Windows installation the GPU is recognized normally and apparently fully functional, and I can connect with the HDMI monitor.

nvidia-smi returns no devices found. I followed the indications here How do I know which NVIDIA driver I need? to try and reinstall the drivers. sudo ubuntu-drivers autoinstall changed the nvidia-smi to instead complain about library conflicts. I then tried running sudo apt install nvidia-driver-580-server-open, and the new nvidia-smi output is NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running. I tried several versions included in the output of ubuntu-drivers devices, but nvidia-smi is always showing library conflicts, no devices or no drivers. I also tried manually in Software Update > Additional drivers, but nothing solved the issue.

I include several informations I saw provided in similar questions in case they can be of help:

$lspci -k | grep -EA3 'VGA|3D|Display'

00:02.0 VGA compatible controller: Intel Corporation Arrow Lake-U [Intel Graphics] (rev 06)
    Subsystem: Lenovo Device 8019
    Kernel driver in use: i915
    Kernel modules: i915, xe
--
02:00.0 VGA compatible controller: NVIDIA Corporation Device 2d58 (rev a1)
    Subsystem: Lenovo Device 8019
    Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
02:00.1 Audio device: NVIDIA Corporation Device 22eb (rev a1)
--
80:14.5 Non-VGA unclassified device: Intel Corporation Device 7f2f (rev 10)
    Subsystem: Lenovo Device 3e10
80:15.0 Serial bus controller: Intel Corporation Device 7f4c (rev 10)
    Subsystem: Lenovo Device 3e10

$ lspci -vnn | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Arrow Lake-U [Intel Graphics] [8086:7d67] (rev 06) (prog-if 00 [VGA controller])
02:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:2d58] (rev a1) (prog-if 00 [VGA controller])
80:14.5 Non-VGA unclassified device [0000]: Intel Corporation Device [8086:7f2f] (rev 10)

$sudo lshw -c video
  *-display                 
       description: VGA compatible controller
       product: Arrow Lake-U [Intel Graphics]
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       logical name: /dev/fb0
       version: 06
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb
       configuration: depth=32 driver=i915 latency=0 mode=2560x1600 resolution=2560,1600 visual=truecolor xres=2560 yres=1600
       resources: iomemory:620-61f iomemory:620-61f irq:201 memory:6202000000-6202ffffff memory:6210000000-621fffffff memory:c0000-dffff memory:6a20000000-6a26ffffff
  *-display UNCLAIMED
       description: VGA compatible controller
       product: NVIDIA Corporation
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vga_controller cap_list
       configuration: latency=0
       resources: iomemory:600-5ff iomemory:620-61f memory:80000000-83ffffff memory:6000000000-61ffffffff memory:6200000000-6201ffffff ioport:9000(size=128) memory:84000000-8407ffff

$inxi -G
Graphics:
  Device-1: Intel Arrow Lake-U [Intel Graphics] driver: i915 v: kernel
  Device-2: NVIDIA driver: N/A
  Device-3: Chicony Integrated Camera driver: uvcvideo type: USB
  Display: wayland server: X.Org v: 23.2.6 with: Xwayland v: 23.2.6
    compositor: gnome-shell v: 46.0 driver: X: loaded: modesetting
    unloaded: fbdev,vesa dri: iris gpu: i915 resolution: 2560x1600~240Hz
  API: EGL v: 1.5 drivers: iris,swrast
    platforms: gbm,wayland,x11,surfaceless,device
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa
    v: 25.2.8-0ubuntu0.24.04.1 renderer: Mesa Intel Graphics (ARL)

$ sudo modprobe nvidia && sudo dmesg | tail
modprobe: FATAL: Module nvidia not found in directory /lib/modules/6.17.0-14-generic

Or also, depending on driver version I try to install:

$inxi -G
Graphics:
  Device-1: Intel Arrow Lake-U [Intel Graphics] driver: i915 v: kernel
  Device-2: NVIDIA driver: nvidia v: 580.126.09
  Device-3: Chicony Integrated Camera driver: uvcvideo type: USB
  Display: wayland server: X.Org v: 23.2.6 with: Xwayland v: 23.2.6
    compositor: gnome-shell v: 46.0 driver: X: loaded: modesetting
    unloaded: fbdev,vesa dri: iris gpu: i915 resolution: 2560x1600~240Hz
  API: EGL v: 1.5 drivers: iris,swrast
    platforms: gbm,wayland,x11,surfaceless,device
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa
    v: 25.2.8-0ubuntu0.24.04.1 renderer: Mesa Intel Graphics (ARL)

$ sudo modprobe nvidia && sudo dmesg | tail
[ 1437.221335] audit: type=1400 audit(1770939064.183:883): apparmor="DENIED" operation="open" class="file" profile="snap.brave.brave" name="/proc/5375/smaps_rollup" pid=5375 comm="MemoryInfra" requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000
[ 1455.178561] nvidia: loading out-of-tree module taints kernel.
[ 1455.178567] nvidia: module license 'NVIDIA' taints kernel.
[ 1455.178568] Disabling lock debugging due to kernel taint
[ 1455.178570] nvidia: module license taints kernel.
[ 1455.239260] nvidia-nvlink: Nvlink Core is being initialized, major device number 508

[ 1455.883975] nvidia 0000:02:00.0: enabling device (0000 -> 0003)
[ 1455.884418] nvidia 0000:02:00.0: vgaarb: VGA decodes changed: olddecodes=io+mem,decodes=none:owns=none
[ 1455.894759] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  580.126.09  Wed Jan  7 22:59:56 UTC 2026

In the second example it seems a driver is installed, but nvidia-smi still return "no devices were found".

I immensely appreciate any help to solve this issue.

I'm new to linux and Ubuntu, and if you do have an answer please dumb it down for me. I installed Ubuntu 25.10 on a new machine with the following hardware:

• CPU: AMD Ryzen 7 7800X3D

• Motherboard: ASRock B650M Pro RS WiFi

• GPU: Intel Arc B580 (Battlemage G21)

• RAM: DDR5

What happened:

• I tried loading Zoring, a different version of Ubuntu, and finally Ubuntu 25.10. I keep having the same problem where I log in, the computer freezes after about 10 seconds, then goes to an eternal loop of showing the login screen and then freezing to go back to the login screen.

• Folks thought it was a problem with my GPU, so I went with Ubuntu 25.10 which seems to think it has drivers that match my GPU. I installed Ubuntu using nomodeset to get the system to boot.

• After installation, the display was stuck at 800×600, and the GPU showed as UNCLAIMED.

• Mesa version: 25.2.8, kernel: 6.17.0-14-generic.

• Tried forcing the i915 driver to claim the Arc GPU via i915.force_probe=G9B0 in GRUB.

• After rebooting, the system briefly shows higher resolution, but freezes. Then it goes into a loop of showing the login screen, freezing, and going back to the login screen.

• Reverting to nomodeset removed the freeze, but the GPU remains unclaimed and resolution stuck.

Goal:

• Get the computer to run....like a normal computer runs.

• Get the Intel Arc B580 properly recognized and used by Ubuntu 25.10 without freezing.

What I want to know:

• Anyone know how to fix this?

• Is there a safe, supported way to enable the Arc GPU on Ubuntu 25.10?

• Any experiences with Battlemage GPUs freezing after attempting i915.force_probe?

I am upgrading my project from .NET 8.0 to .NET 10 framework. There is a code to install New Relic Agent in my docker file via Octopus Deploy. It worked fine for .NET 8.0, but it's failing for .NET 10.0 with this error message:

Err:1 http://security.ubuntu.com/ubuntu noble-security InRelease
  Connection failed [IP: 91.189.91.81 80]

Below is my docker file code:

RUN apt-get update && apt-get install -y wget ca-certificates gnupg \
    && echo 'deb https://apt.newrelic.com/debian/ newrelic non-free' | tee /etc/apt/sources.list.d/newrelic.list \
    && wget https://download.newrelic.com/548C16BF.gpg \
    && apt-key add 548C16BF.gpg \
    && apt-get update \
    && apt-get install -y newrelic-dotnet-agent

I tried the below code, but I got the same error:

RUN sed -i 's|http://security.ubuntu.com/ubuntu|https://mirror.enzu.com|g' /etc/apt/sources.list.d/ubuntu.sources && \
    sed -i 's|http://archive.ubuntu.com/ubuntu|https://mirror.enzu.com|g' /etc/apt/sources.list.d/ubuntu.sources && \
    apt-get update && \
    apt-get install -y wget ca-certificates gnupg && \
    echo "deb [signed-by=/usr/share/keyrings/newrelic.gpg] https://apt.newrelic.com newrelic non-free" | tee /etc/apt/sources.list.d/newrelic.list && \
    wget -O- https://download.newrelic.com | gpg --dearmor | tee /usr/share/keyrings/newrelic.gpg > /dev/null && \
    apt-get update && \
    apt-get install -y newrelic-dotnet-agent && \

First of all, I am not a pro, but an enthusiast in Linux and still at the beginning of my new informatics career, so please be a little bit patient. Because of that, I tried to resolve this problem partly with google search and partly with AI. This text is also edited with AI. I've checked the information before posting this text. (Not just copy-paste) But maybe you guys see something what I do not see.

I have a dual-boot setup with Ubuntu 24.04 and Windows 11 on separate drives. After booting Windows 11 and then switching to Ubuntu, my RTL8822CE WiFi adapter fails to initialize. WiFi only works after performing a CMOS reset and booting Ubuntu directly without starting Windows first.

System:

• Ubuntu 24.04.3 LTS, Kernel 6.17.0-14-generic (HWE)

• Realtek RTL8822CE 802.11ac PCIe (21:00.0)

• AMD B450/X570 (Starship/Matisse), RX 5600 XT

• linux-firmware 20240318.git3b128b60-0ubuntu2.23

Symptoms: lspci detects the card. lsmod | grep rtw shows rtw88_8822ce and dependencies are loaded. However, ip link show shows no WiFi interface, and rfkill list only shows Bluetooth.

sudo dmesg | grep -i rtw output:

rtw88_8822ce 0000:21:00.0: enabling device (0500 -> 0503)
rtw88_8822ce 0000:21:00.0: Firmware version 9.9.15, H2C version 15
rtw88_8822ce 0000:21:00.0: WOW Firmware version 9.9.4, H2C version 15
rtw88_8822ce 0000:21:00.0: error beacon valid
rtw88_8822ce 0000:21:00.0: failed to download rsvd page
rtw88_8822ce 0000:21:00.0: failed to download firmware
rtw88_8822ce 0000:21:00.0: failed to setup chip efuse info
rtw88_8822ce 0000:21:00.0: failed to setup chip information
rtw88_8822ce 0000:21:00.0: probe with driver rtw88_8822ce failed with error -16

Error -16 (EBUSY) – the chip appears stuck in a state left by Windows.

What I tried (none of these helped):

• Disabled Windows Fast Startup

• Fully powering off the PC (unplugging power cable, waiting, pressing power button to discharge)

• sudo modprobe -r rtw88_8822ce + sudo modprobe rtw88_8822ce

• sudo setpci -s 21:00.0 0x80.B=0 (ASPM disable)

• PCI device reset via echo 1 | sudo tee /sys/bus/pci/devices/0000:21:00.0/reset

• PCI remove + rescan via sysfs

• GRUB parameters pci=realloc pcie_aspm=off

• Ubuntu Recovery Mode (worked once, but never again on subsequent attempts)

• After all that doesn't work I tried to reinstall both operating-systems, but this also didn't help. When in try to install Ubuntu I still can not connect the WiFi.

The only reliable fix so far:

• CMOS clear (removing the battery from the motherboard) → boot Ubuntu directly without Windows → WiFi works. However, as soon as Windows is booted once, the problem returns and only another CMOS clear resolves it.

Firmware files are present: /lib/firmware/rtw88/rtw8822c_fw.bin.zst and rtw8822c_wow_fw.bin.zst

It appears that Windows 11 permanently alters something in the RTL8822CE's non-volatile state that survives even a full power cycle, and that only a CMOS reset can clear. The rtw88 kernel driver cannot recover from this state.

Question: Has anyone found a permanent solution for this issue that allows normal dual-boot operation without requiring a CMOS reset every time after using Windows?

This worked for me.

1.     Install Linux on PC

2.     Install Firefox or other browser and get internet working.

3.     Go through settings and write down your system configuration settings and other settings so you automatically know what to do on the other computers.

4.     Log in to pCloud

5.     On the left panel “Download App”

6.     Choose Linux; 64-bit version

7.     On the terminal change directory to downloads: cd ~/Downloads (observe sentence case)

8.     If your version is 24.04… or higher you need to install a package that will perform the installation.  That is: sudo apt install libfuse2t64

9.     Give owner permission to run: chmod +x pCloud.AppImage

10. Execute file: ./pCloudAppImage

11. pCloud screen opens: Sign in and choose folders to sync.

12. On the GUI open a folder(s) to see if its syncing.

12. Terminal stays open without new command line appearing.  Your options are to “exit” and wait for the message to close terminal or minimize it and see if it self-corrects in time.

I’m facing a persistent microphone issue on Kubuntu under Wayland. The hardware and ALSA layer appear to work correctly, but browsers fail to create an input stream.

I would appreciate guidance on structured debugging.

System Information

• Distro: Kubuntu (Plasma)

• echo $XDG_SESSION_TYPE → wayland

• Audio stack: PipeWire 1.2.7 + WirePlumber

• Chipset: HDA Intel PCH

• Codec: Realtek ALC257

Output of:

cat /proc/asound/cards

0 [PCH]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0x6001140000 irq 171

Problem Description

• During calls, people cannot hear me.

• I can hear them perfectly.

• Happens in Chrome, Firefox, and Brave.

• Sometimes browser shows “Mic not found”.

• Happens with and without headphones.

• Restarting PipeWire sometimes temporarily fixes it.

• Issue is inconsistent.

Current PipeWire State

Output of:

wpctl status

Audio devices:

• Built-in Audio detected

• Sink and Source both present

• Default sink and source correctly set to built-in analog stereo

However, when Chrome is open, under “Streams” I only see:

output_FL
output_FR

There are no input_FL / input_FR streams created for Chrome.

So:

• ALSA sees capture device

• PipeWire sees source

• Default source is correctly configured

• Browser does not create input stream

What I’ve Tried

1. Restarted services:

   systemctl --user restart pipewire pipewire-pulse wireplumber
   systemctl --user restart xdg-desktop-portal
   
   

2. Verified capture device exists:

   arecord -l
   
   

3. Verified duplex profile enabled (Analog Stereo Duplex).

4. Set default sink/source manually:

   wpctl set-default <sink-id>
   wpctl set-default <source-id>
   
   

5. Checked in pavucontrol:

   • Mic visible

   • Not muted

   • Volume normal

6. Disabled ALSA power saving:
   Created /etc/modprobe.d/disable-hda-powersave.conf with:

   options snd_hda_intel power_save=0 power_save_controller=N
   
   

   Rebuilt initramfs and rebooted.

7. Verified xdg-desktop-portal and xdg-desktop-portal-kde are installed.

None of these resolved the issue permanently.

Observations

• Hardware appears functional.

• ALSA layer is functional.

• PipeWire source node exists.

• Browser does not create capture stream.

• Restarting services sometimes restores mic temporarily.

• System is running under Wayland.

We have been developing an architecture where the system disk has four partitions, two boot partitions and two root partitions. This allows a system running in boot1/root1 to self-install a brand new operating system on boot2/root2 and reboot on it (and vice-versa). We successfully implemented this strategy on the Intel/AMD and ARM64 RPI architectures and it has been working very well until now. With Ubuntu 25.10, the kernel can't boot anymore, as it seems unable to locate the root partition.

See the below error message.

[   0.339898] platform axi:gpu: bcm2712_iommu_probe_device: MMU 1000005200.iommu
[   0.340148] platform axi:gpu: bcm2712_iommu_device_group: MMU 1000005200.iommu
[   0.340400] platform axi:gpu: Adding to iommu group 1
[   0.340651] platform 107c500000.hvs: bcm2712_iommu_of_xlate: MMU 1000005200.iommu
[   0.341162] platform 107c500000.hvs: bcm2712_iommu_probe_device: MMU 1000005200.iommu
[   0.341411] platform 107c500000.hvs: bcm2712_iommu_device_group: MMU 1000005200.iommu
[   0.341656] platform 107c500000.hvs: Adding to iommu group 1
[   0.341914] platform axi:gpu: bcm2712_iommu_attach_dev: MMU 1000005200.iommu
[   0.342151] platform 107c500000.hvs: bcm2712_iommu_attach_dev: MMU 1000005200.iommu
[   0.342402] bcm2712-iommu 1000005200.iommu: bcm2712_iommu_probe: Success
[   0.348489] bcm2712-iommu 1000005200.iommu: bcm2712_iommu_init: DEBUG_INFO = 0x20804774
[   0.348992] bcm2712-iommu 1000005200.iommu: bcm2712_iommu_probe: Success
[   0.349589] of_cfs_init
[   0.349845] of_cfs_init: OK
[   0.357878] clk: Disabling unused clocks
[   0.420715] PM: genpd: Disabling unused power domains
[   0.421016] check access for rdinit=/init failed: -2, ignoring
[   0.421257] Disabling rootwait; root= is invalid.
[   0.421577] /dev/root: Can't open blockdev
[   0.421817] VFS: Cannot open root device "UUID=22222222-0000-0000-0000-000000000003" or unknown-block(0,0): error -6
[   0.422056] Please append a correct "root=" boot option; here are the available partitions:
[   0.422299] List of all bdev filesystems:
[   0.422532]  ext3
[   0.422533]  ext2
[   0.422765]  ext4
[   0.422994]  squashfs
[   0.423218]  vfat
[   0.423441]
[   0.423800] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[   1.903989] CPU: 3 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.17.0-1003-raspi #3-Ubuntu PREEMPT(full)
[   1.913419] Hardware name: Raspberry Pi 5 Model B Rev 1.0 (DT)
[   1.919269] Call trace:
[   1.921716]  show_stack+0x30/0x90 (C)
[   1.925388]  dump_stack_lvl+0x78/0xa0
[   1.929057]  dump_stack+0x18/0x2c
[   1.932376]  vpanic+0x160/0x378
[   1.935521]  panic+0x68/0x78
[   1.938405]  mount_root_generic+0x1f8/0x2c0
[   1.942598]  mount_root+0xa4/0xc0
[   1.945917]  prepare_namespace+0x1cc/0x258
[   1.950022]  kernel_init_freeable+0x1b4/0x1d8
[   1.954391]  kernel_init+0x38/0x178
[   1.957887]  ret_from_fork+0x10/0x20
[   1.961469] SMP: stopping secondary CPUs
[   1.968942] Kernel Offset: 0x207bce400000 from 0xffff800080000000
[   1.975282] PHYS_OFFSET: 0x0
[   1.978391] CPU features: 0x080000,00017000,24003140,0401720b
[   1.984387] Memory Limit: none
[   1.987673] Rebooting in 10 seconds..
_

The exact same method works perfectly on Ubuntu 24.04, both for Intel/AMD and the ARM64 Raspberry Pi 5, and on Ubuntu 25.10 for Intel/AMD.

We are using a M.2 Hat+ and it is not a SSD error as I tried with two different drives.

If I look at the contents of the SSD card (here /dev/sdf) I'm trying to boot from, this is what I have:

$ sudo losetup --find --show --partscan /dev/sdf

$ sudo blkid | grep loop37 | sort

/dev/loop37p1: LABEL_FATBOOT="BOOT1" LABEL="BOOT1" UUID="1111-0001" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="BOOT1" PARTUUID="7594305d-cf5f-4528-9c2f-169a6e52aad8"
/dev/loop37p2: LABEL_FATBOOT="BOOT2" LABEL="BOOT2" UUID="1111-0002" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="BOOT2" PARTUUID="35f3945b-7888-43ab-9350-d459b3d4a6f9"
/dev/loop37p3: LABEL="ROOT1" UUID="22222222-0000-0000-0000-000000000003" BLOCK_SIZE="4096" TYPE="ext4" PARTLABEL="ROOT1" PARTUUID="7b1ce64b-7ef0-492f-879b-df62572b7565"
/dev/loop37p4: PARTLABEL="GUARD" PARTUUID="f061c0e4-6fad-4c64-95d2-91465975adf2"

$ sudo mount /dev/loop37p1 ~/boot

$ ls ~/boot

autoboot.txt  current       fixup4db.dat  fixup.dat     meta-data       start4cd.elf  start4x.elf   start.elf
bootcode.bin  fixup4cd.dat  fixup4x.dat   fixup_db.dat  network-config  start4db.elf  start_cd.elf  start_x.elf
config.txt    fixup4.dat    fixup_cd.dat  fixup_x.dat   README          start4.elf    start_db.elf  user-data

$ ls ~/boot/current

bcm2710-rpi-2-b.dtb       bcm2710-rpi-zero-2.dtb    bcm2711-rpi-cm4-io.dtb  bcm2712-rpi-5-b.dtb         cmdline.txt
bcm2710-rpi-3-b.dtb       bcm2710-rpi-zero-2-w.dtb  bcm2711-rpi-cm4s.dtb    bcm2712-rpi-cm5-cm4io.dtb   initrd.img
bcm2710-rpi-3-b-plus.dtb  bcm2711-rpi-400.dtb       bcm2712d0-rpi-5-b.dtb   bcm2712-rpi-cm5-cm5io.dtb   overlays
bcm2710-rpi-cm0.dtb       bcm2711-rpi-4-b.dtb       bcm2712-d-rpi-5-b.dtb   bcm2712-rpi-cm5l-cm4io.dtb  state
bcm2710-rpi-cm3.dtb       bcm2711-rpi-cm4.dtb       bcm2712-rpi-500.dtb     bcm2712-rpi-cm5l-cm5io.dtb  vmlinuz

$ cat ~/boot/current/cmdline.txt

console=serial0,115200 multipath=off dwc_otg.lpm_enable=0 console=tty1 root=UUID=22222222-0000-0000-0000-000000000003 rootfstype=ext4 panic=10 rootwait fixrtc

$ cat ~/boot/autoboot.txt

[all]
boot_partition=1

And the contents of the ROOT1 partition looks normal:

sudo mount /dev/loop37p3 ~/root

ls ~/root

bin  boot  dev  etc  home  lib  lost+found  media  mnt  onboarding  opt  proc  root  run  sbin  snap  srv  sys  tmp  usr  var

$ ls ~/root/boot

config-6.17.0-1003-raspi  initrd.img                    initrd.img.old                vmlinuz                    vmlinuz.old
config-6.17.0-1007-raspi  initrd.img-6.17.0-1003-raspi  System.map-6.17.0-1003-raspi  vmlinuz-6.17.0-1003-raspi
config-6.17.0-12-generic  initrd.img-6.17.0-1007-raspi  System.map-6.17.0-1007-raspi  vmlinuz-6.17.0-1007-raspi
firmware                  initrd.img-6.17.0-12-generic  System.map-6.17.0-12-generic  vmlinuz-6.17.0-12-generic

Would anyone be able to suggest me where to look for the cause of this boot error?

In the above partitions layout, it is normal that ROOT2 is absent, as our initial disk contains only one ROOT1 partition, the second ROOT2 partition being created on the fly on the first boot.

this started right after i completely installed Ubuntu 24.04 LTS Desktop and now everytime i put my laptop in sleep, standby, supended mode my wifi driver goes into hardware airplane mode, and the terminal said "softstop: no hardstop: yes"

I recently cleared my laptop of Windows and installed Ubuntu Budgie 24.04.3 LTS. It is a 2018 Razer Blade 15 Adv. I have two problems.

1. I installed OpenRazer, which also includes enrolling a MOK. It seems to randomly forget the MOK. It cannot load OpenRazer until I re-enroll the MOK again. Is there something that would remove the MOK automatically?

2. Sometimes the system will lock up tight and I have to force reboot. The special key (PrtSc) to talk directly to the kernel doesn't work to reboot. I have to force power off. The special key works when not frozen. Also with this comes the MOK being removed from the boot and OpenRazer not loading. Where would I look to figure out what is causing these lock ups? I have checked the logs, but nothing jumps out.

I wouldn't post here if I didn't feel like I'm struggling with something basic that I'm missing.

I recently installed a new Ubuntu installation. It was originally installed as Ubuntu Server (25.10), due to the desire to install in RAID, and then Ubuntu desktop (apt install ubuntu-desktop) immediately installed via apt.

It has booted fine, but I've had problems with the hardware crashing. I got rid of an NVIDIA card and crashed went from daily to less than weekly, so I guess that's an improvement.

The problem is that I can't boot the system, but it looks like everything is going fine. It is booting without the splash screen, and everything has a green [ OK ], but then it just stops and gets stuck. This is before networking is working, no GUI and no terminals running on tty2,3,4,5. I can switch to those ttys, but there is just a blinking cursor. Without networking, of course, no SSH.

If I boot into recovery mode, networking works right away, and if I "continue boot" it goes into the desktop, and networking, ssh, etc. are working, but only at 1024x768 resolution and SSH won't connect to a terminal because it isn't "fully booted" and kicks me off.

I've run fsck on all of the filesystems and, although the array that gets mounted as /home has some issues with tree depth or something, they didn't seem like hard errors and correcting them didn't fix it.

For reference, this is where I end up stuck at a black screen with the following boot messages:

[  OK  ] Started apt-daily-upgrade.timer - Daily apt upgrade and clean activities.
[  OK  ] Started dpkg-db-backup.timer - Daily dpkg database backup timer.
[  OK  ] Started e2scrub_all.timer - Periodic ext4 Online Metadata Check for All Filesystems.
[  OK  ] Started fstrim.timer - Discard unused filesystem blocks once a week.
[  OK  ] Started fwupd-refresh.timer - Refresh fwupd metadata regularly.
[  OK  ] Started logrotate.timer - Daily rotation of log files.
[  OK  ] Started man-db.timer - Daily man-db regeneration.
[  OK  ] Started mdcheck_continue.timer - MD array scrubbing - continuation.
[  OK  ] Started mdcheck_start.timer - MD array scrubbing.
[  OK  ] Started mdmonitor-oneshot.timer - Reminder for degraded MD arrays.
[  OK  ] Started motd-news.timer - Message of the Day.
[  OK  ] Started sysstat-collect.timer - Run system activity accounting tool every 10 minutes.
[  OK  ] Started sysstat-rotate.timer - Rotate daily system activity data file at midnight.
[  OK  ] Started sysstat-summary.timer - Generate summary of yesterday's process accounting.
[  OK  ] Started systemd-tmpfiles-clean.timer - Daily Cleanup of Temporary Directories.
[  OK  ] Reached target boot-complete.target - Boot Completion Check.
[  OK  ] Reached target paths.target - Path Units.
[  OK  ] Listening on avahi-daemon.socket - Avahi mDNS/DNS-SD Stack Activation Socket.
[  OK  ] Listening on cups.socket - CUPS Scheduler.
[  OK  ] Listening on dbus.socket - D-Bus System Message Bus Socket.
[  OK  ] Listening on iscsid.socket - Open-iSCSI iscsid Socket.
         Starting lxd-installer.socket - Helper to install lxd snap on demand...
         Starting snapd.socket - Socket activation for snappy daemon...
[  OK  ] Listening on ssh.socket - OpenBSD Secure Shell server socket.
[  OK  ] Listening on sshd-unix-local.socket - OpenSSH Server Socket (systemd-ssh-generator, AF_UNIX Local).
[  OK  ] Listening on systemd-hostnamed.socket - Hostname Service Socket.
[  OK  ] Listening on uuidd.socket - UUID daemon activation socket.
[  OK  ] Listening on lxd-installer.socket - Helper to install lxd snap on demand.
[  OK  ] Listening on snapd.socket - Socket activation for snappy daemon.
[  OK  ] Reached target sockets.target - Socket Units.
[  OK  ] Started systemd-networkd.service - Network Configuration.
         Starting systemd-networkd-persistent-storage.service - Enable Persistent Storage in systemd-networkd...
[  OK  ] Finished systemd-networkd-persistent-storage.service - Enable Persistent Storage in systemd-networkd.

The system responds to Ctrl-Alt-Del and reboots cleanly, as well as REISUB reboot. It just won't load the environment completely. It seems like it thinks it's done.

Logs don't seem to contain any issues. I've disabled the wait for network service, for now, since that seemed to be hanging, if that is a clue. Where should I be looking?

Results of systemctl list-jobs (chatGPT image transcription, may contain errors):

JOB  UNIT                              TYPE   STATE
178  cron.service                     start  waiting
162  snapd.core-fixup.service         start  waiting
45   dbus.service                     start  waiting
1022 alsa-state.service               start  waiting
98   setvtrgb.service                 start  waiting
173  nss-user-lookup.target           start  waiting
172  sssd-nss.socket                  start  waiting
129  kdump-tools.service              start  running
187  snapd.autoimport.service         start  waiting
198  sysstat.service                  start  waiting
1    graphical.target                 start  waiting
190  dmesg.service                    start  waiting
230  cups.service                     start  waiting
254  gdm.service                      start  waiting
894  alsa-restore.service             start  waiting
47   remote-fs-pre.target             start  waiting
240  snapd.service                    start  waiting
206  avahi-daemon.service             start  waiting
247  udisks2.service                  start  waiting
146  update-notifier-download.timer   start  waiting
186  pollinate.service                start  waiting
217  plymouth-quit-wait.service       start  waiting
211  systemd-user-sessions.service    start  waiting
43   NetworkManager.service           start  waiting
188  snapd-recovery-chooser-trigger.service start  waiting
1028 home-bridge-Games-ROMs.mount     start  waiting
236  snapd.seeded.service             start  waiting
42   NetworkManager-wait-online.service start  waiting
46   network.target                   start  waiting
226  wpa_supplicant.service           start  waiting
183  usermin.service                  start  waiting
216  e2scrub_reap.service             start  waiting
167  openvpn.service                  start  waiting
99   systemd-pcrphase.service         start  waiting
893  sound.target                     start  waiting
249  power-profiles-daemon.service    start  waiting
170  sssd.service                     start  waiting
234  webmin.service                   start  waiting
176  sssd-ssh.socket                  start  waiting
171  sssd-sudo.socket                 start  waiting
238  grub-initrd-fallback.service     start  waiting
231  rsyslog.service                  start  waiting
134  timers.target                    start  waiting
154  ua-reboot-cmds.service           start  waiting
207  ModemManager.service             start  waiting
138  update-notifier-motd.timer       start  waiting
189  getty-pre.target                 start  waiting
246  gnome-remote-desktop.service     start  waiting
181  grub2-common.service             start  waiting
203  systemd-logind.service           start  waiting
179  thermald.service                 start  waiting
213  unattended-upgrades.service     start  waiting
202  secureboot-db.service            start  waiting
163  chrony.service                   start  waiting
227  anacron.service                  start  waiting
195  remote-fs.target                 start  waiting
155  getty.target                     start  waiting
2    multi-user.target                start  waiting
118  sshd-keygen.service              start  waiting
233  ubuntu-advantage.service         start  waiting
174  sssd-autofs.socket               start  waiting
218  ssl-cert.service                 start  waiting
258  accounts-daemon.service          start  waiting
157  system-getty.slice               start  waiting
248  switcheroo-control.service       start  waiting
744  printer.target              start  waiting
101  blk-availability.service    start  waiting
208  polkit.service               start  waiting
40   open-iscsi.service           start  waiting
41   network-online.target       start  waiting
228  cups-browsed.service        start  waiting
177  sssd-pam.socket              start  waiting
242  apport.service               start  waiting
255  gpu-manager.service          start  waiting
161  getty-static.service         start  waiting
235  networkd-dispatcher.service start  waiting
175  sssd-pac.socket              start  waiting
3    basic.target                 start  waiting

78 jobs listed.

I am working on a fresh install of Ubuntu 24.04. I installed Brother drivers for printers and scanners. I used these Brother machines for the last 10 years with no issues on previous version of Ubuntu.

When I install brscan-skey it

pkg: brscan-skey: dependency problems, but configuring anyway as you requested:
 brscan-skey depends on libsane (>= 1.0.11-3); however:
  Package libsane is not installed.

Setting up brscan-skey (0.3.2-0) ...
apt-get install libusb-0.1-4
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
 brscan-skey : Depends: libsane (>= 1.0.11-3) but it is not installable
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

I did the apt --fix-broken install but it doesn't solve the problem. Moreover

host:~#  dpkg --list libsane*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                Version                Architecture Description
+++-===================-======================-============-=========================================================>
ii  libsane-common      1.2.1-7build4          all          API library for scanners -- documentation and support fil>
ii  libsane-hpaio:amd64 3.23.12+dfsg0-0ubuntu5 amd64        HP SANE backend for multi-function peripherals
ii  libsane1:amd64      1.2.1-7build4          amd64        API library for scanners

Therefore, from what I understand I have libsane so what's the problem?

On Thursday, My OS updated to 22.04.4, and the nightmare began. Everything worked fine until Friday morning when even the network settings on my PC disappeared. I received the "NetworkManager not active" error, so after one day and a half of following all the troubleshooting suggested in this form and downloading thousands of .deb files from the archives, I managed to get back my connection icons and settings, and the PC seems to be connected, both with WiFi and Ethernet, but it doesn't connect to the internet. I've also manually updated the kernel as someone suggested, but there's still no internet connection.

I'm a newbie to the Ubuntu world, so be patient if I'm missing something obvious. I don't know what to do anymore, and my work deadlines are so behind I want to cry.

Also, for the sake of completeness, here's all that come to mind that could be useful:

Results of iwconfig:

lo        no wireless extensions.
enp0s31f6  no wireless extensions.
wlp0s20f3  IEEE 802.11  ESSID:"BenderKetiofender"
Mode:Managed  Frequency:5.18 GHz
Access Point: B0:A7:B9:DA:F2:1C
Bit Rate=234 Mb/s   Tx-Power=22 dBm
      Retry short limit:7   RTS thr:off   Fragment thr:off
      Power Management:on
      Link Quality=70/70  Signal level=-30 dBm  
      Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
      Tx excessive retries:0  Invalid misc:77   Missed beacon:0

nmcli general

STATE                  CONNECTIVITY  WIFI-HW  WIFI     WWAN-HW  WWAN
connected (site only)  limited       enabled  enabled  enabled  enabled 

lshw -c network

*-network:0               
   description: Wireless interface
   product: Wi-Fi 6 AX201
   vendor: Intel Corporation
   physical id: 14.3
   bus info: pci@0000:00:14.3
   logical name: wlp0s20f3
   version: 20
   serial: 2c:6d:c1:aa:11:03
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
   configuration: broadcast=yes driver=iwlwifi driverversion=6.5.0-35-generic firmware=77.2df8986f.0 QuZ-a0-hr-b0-77.u ip=192.168.1.117 latency=0 link=yes multicast=yes wireless=IEEE 802.11
   resources: iomemory:600-5ff irq:16 memory:6053194000-6053197fff
`*-network:1
   description: Ethernet interface
   product: Ethernet Connection (13) I219-LM
   vendor: Intel Corporation
   physical id: 1f.6
   bus info: pci@0000:00:1f.6
   logical name: enp0s31f6
   version: 20
   serial: b4:45:06:4c:73:93
   size: 1Gbit/s
   capacity: 1Gbit/s
   width: 32 bits
   clock: 33MHz
   capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
   configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=6.5.0-35-generic duplex=full firmware=0.8-4 ip=192.168.1.113 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
   resources: irq:150 memory:a2300000-a231ffff'

Results of lspci -knn | grep -A 2 -i net:

00:14.3 Network controller [0280]: Intel Corporation Wi-Fi 6 AX201 [8086:a0f0] (rev 20)
Subsystem: Intel Corporation Wi-Fi 6 AX201 [8086:4070]
Kernel driver in use: iwlwifi
--
00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (13) I219-LM [8086:15fb] (rev 20)
Subsystem: Dell Ethernet Connection (13) I219-LM [1028:0a21]
Kernel driver in use: e1000e
Kernel modules: e1000e

Results of nmcli:

enp0s31f6: connected to Connessione via cavo 1
    "Intel I219-LM"
    ethernet (e1000e), B4:45:06:4C:73:93, hw, mtu 1500
    ip4 default
    inet4 192.168.1.113/24
    route4 192.168.1.0/24 metric 100
    route4 default via 192.168.1.1 metric 20100
wlp0s20f3: connected to BenderKetiofender
    "Intel 6 AX201"
    wifi (iwlwifi), 2C:6D:C1:AA:11:03, hw, mtu 1500
    inet4 192.168.1.117/24
    route4 192.168.1.0/24 metric 600
    route4 default via 192.168.1.1 metric 20600
p2p-dev-wlp0s20f3: disconnected
    "p2p-dev-wlp0s20f3"
wifi-p2p, hw
lo: unmanaged
    "lo"
loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536
DNS configuration:
servers: 192.168.1.1
interface: wlp0s20f3
servers: 192.168.1.1
interface: enp0s31f6

Results of nmcli device show:

GENERAL.DEVICE:                         enp0s31f6
GENERAL.TYPE:                           ethernet
GENERAL.HWADDR:                         B4:45:06:4C:73:93
GENERAL.MTU:                            1500
GENERAL.STATE:                          100 (connected)
GENERAL.CONNECTION:                     Connessione via cavo 1
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveC>
WIRED-PROPERTIES.CARRIER:               on
IP4.ADDRESS[1]:                         192.168.1.113/24
IP4.GATEWAY:                            192.168.1.1
IP4.ROUTE[1]:                           dst = 192.168.1.0/24, nh = 0.0.0.0, mt >
IP4.ROUTE[2]:                           dst = 0.0.0.0/0, nh = 192.168.1.1, mt =>
IP4.DNS[1]:                             192.168.1.1
IP6.GATEWAY:                            --
GENERAL.DEVICE:                         wlp0s20f3
GENERAL.TYPE:                           wifi
GENERAL.HWADDR:                         2C:6D:C1:AA:11:03
GENERAL.MTU:                            1500
GENERAL.STATE:                          100 (connected)
GENERAL.CONNECTION:                     BenderKetiofender
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveC>
IP4.ADDRESS[1]:                         192.168.1.117/24
IP4.GATEWAY:                            192.168.1.1
IP4.ROUTE[1]:                           dst = 192.168.1.0/24, nh = 0.0.0.0, mt >
IP4.ROUTE[2]:                           dst = 0.0.0.0/0, nh = 192.168.1.1, mt =>
IP4.DNS[1]:                             192.168.1.1
IP6.GATEWAY:                            --
GENERAL.DEVICE:                         p2p-dev-wlp0s20f3
GENERAL.TYPE:                           wifi-p2p
GENERAL.HWADDR:                         (unknown)
GENERAL.MTU:                            0
GENERAL.STATE:                          30 (disconnected)
GENERAL.CONNECTION:                     --
GENERAL.CON-PATH:                       --
GENERAL.DEVICE:                         lo
GENERAL.TYPE:                           loopback
GENERAL.HWADDR:                         00:00:00:00:00:00
GENERAL.MTU:                            65536
GENERAL.STATE:                          10 (unmanaged)
GENERAL.CONNECTION:                     --
GENERAL.CON-PATH:                       --
IP4.ADDRESS[1]:                         127.0.0.1/8
IP4.GATEWAY:                            --
IP6.ADDRESS[1]:                         ::1/128
IP6.GATEWAY:                            --
IP6.ROUTE[1]:                           dst = ::1/128, nh = ::, mt = 256

Results of nmcli connection show:

NAME                    UUID                                  TYPE      DEVICE >
Connessione via cavo 1  4cba5758-9e86-3b4c-9ac0-17bb9bbc81e5  ethernet  enp0s31>
BenderKetiofender       80f620b0-a34d-438d-94ac-e1585760285d  wifi      wlp0s20>
DipinfoWPA              f9af2330-9240-47cb-908b-1528fcef475c  wifi      --     >
DipinfoWPA1             d4ab8249-108f-4f51-ae37-9d774f81888e  wifi      --     >
Jarvis                  47f9ffef-aeb3-4431-b78a-e52ba9ef2366  wifi      --     >

How to change the login screen background on Ubuntu 22.04?

I have a fresh install of Ubuntu 20.04. Connected to ethernet getting dhcp setting automatic from modem.

Gateway 192.168.2.1 Ubuntu 192.168.2.100 Home device 192.168.2.21

Home device is able to connect to internet no problem.

Ubuntu cannot get online.

Home device can ping ubuntu and receives response successfully.

Home device ping to gateway Success

Ubuntu ping to home device Success

Ubuntu ping gateway Nothing

I have been pouring over documents for days. I have hard reset modem. I have whitelisted the ubuntu. I have sudo disable ufw I have tried multiple cables.

I am at a loss. Please help

The output of ip route:

default via 192.168.2.1 dev enp6s0 proto metric 20100
169.254.0.0/16 dev enp6s0 scope link metric 1000
192.168.2.0/24 dev enp6s0 proto kernel scope link src 192.168.2.100 metric 100

The output of ip address:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc no queue state Unknown group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
        valid_lft forever preferred_lft forever
     Inet6 ::1/128 scope host
        valid_lft forever preferred_lft forever
2: enp6s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state up group default qlen 1000
    link/ether 14:fe:b5:dd:71:64 brd ff:ff:ff:ff:ff:ff
    inet 192.168.2.100/24 brd 192.168.2.255 scope global noprefixroute enp6s0
        valid_lft forever preferred_lft forever
    Inet6 fe80::2b3c:abc9:52b8:2ffb/64 scope link noprefixroute
        valid_lft forever preferred_lft forever 

I am running Kubuntu 20.04 Lts on Macbook Pro early 2015 edition and have tried a few other gnome and kde distros, all has the same problem of bluetooth being missing after restart. Sometimes it shows up but more often doesn't.

The systemctl bluetooth status is always as active but in the settings it shows like no bluetooth adapter found

$ systemctl status bluetooth
● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: ena>
     Active: active (running) since Mon 2020-08-31 07:59:52 IST; 10min ago
       Docs: man:bluetoothd(8)
   Main PID: 1106 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 9331)
     Memory: 1.9M
     CGroup: /system.slice/bluetooth.service
             └─1106 /usr/lib/bluetooth/bluetoothd

Aug 31 07:59:52 abubk-MBP systemd[1]: Starting Bluetooth service...
Aug 31 07:59:52 abubk-MBP bluetoothd[1106]: Bluetooth daemon 5.53
Aug 31 07:59:52 abubk-MBP systemd[1]: Started Bluetooth service.
Aug 31 07:59:52 abubk-MBP bluetoothd[1106]: Starting SDP server
Aug 31 07:59:52 abubk-MBP bluetoothd[1106]: Bluetooth management interface 1.14 initial>

System Settings:

lspci | grep Bluetooth doesn't give any results.

I'm trying to enable hibernation on my laptop, and discovered that my problems could have something to do with my Nvidia drivers. So I found this fine document on help.ubuntu.com which tells me to change some settings in /etc/X11/xorg.conf. But it's empty! So what do I do now?

I am trying to control the fan speed manually using the i8kctl package for dell laptops.

System - Ubuntu 16.04, 4.17.19-041719-generic Dell 7567 Inspiron

I followed the instructions in https://askubuntu.com/a/398635 answer, succesfully disabling the BIOS fan control.

However, when I do

ik8ctl fan 2 2

The output is -1 -1

I think this means that the fan speed setting was not successful.

ik8ctl fan returns 0 0 indicating that no fans are on, as the BIOS fan control has been disabled.

I have no issues turning BIOS control on, but I need the fan speed at max at times, which the BIOS is not doing due to some weird reasons.

Why is am8ctl not able to set the fan speeds?

UPDATE: Running as root

sudo ik8ctl fan 2 2

returns 0 0, rather than the earlier -1 -1. Still doesn't quite work as expected.

UPDATE2 Looking at this bug report solution (https://bugs.launchpad.net/i8kutils/+bug/1620580), I force loaded the modules

sudo rmmod dell-smm-hwmon
$ sudo modprobe dell-smm-hwmon restricted=0

The fan control works now for a limited time (1 second). Looks like the bias still takes control after for some reason.

The brave browser worked great for me for many months. I have discovered several extensions which I enabled carefully including "The Great Suspender" so keeping tabs open doesn't consume unnecessary resources.

Last week after an update when I click the icon in the lxde menu bar I see no windows opening at all.

It's not opening a blank white window like I saw reported elsewhere, just nothing.

I believe I installed using the most current method, not snap. 1.0.1 recently came out.

$ dpkg -l | grep -i brave
ii  brave-browser    1.0.1  amd64   The web browser from Brave
ii  brave-keyring    1.7      all   Brave Browser keyring and repository files

I see it's trying to open but doesn't:

$ ps -ef | grep -i brave
grantbow  4732  4160  0 12:42 ?        00:00:00 /bin/bash /usr/bin/brave-browser-stable
grantbow  4739  4732 28 12:42 ?        00:00:09 /opt/brave.com/brave/brave
grantbow  4743  4739  0 12:42 ?        00:00:00 /opt/brave.com/brave/brave --type=zygote
grantbow  4747  4743  0 12:42 ?        00:00:00 /opt/brave.com/brave/brave --type=zygote
grantbow  4766  4739  4 12:42 ?        00:00:01 /opt/brave.com/brave/brave --type=gpu-process --field-trial-handle=1515
8583491962856952,6341817588596150380,131072 --enable-features=NewExtensionUpdaterService,PasswordImport,SimplifyHttpsIn
dicator,WebUIDarkMode --disable-features=AudioServiceOutOfProcess,AutofillServerCommunication,LookalikeUrlNavigationSug
gestionsUI,NotificationTriggers,SmsReceiver,SyncUSSBookmarks,UnifiedConsent --gpu-preferences=KAAAAAAAAAAgAAAgAAAAAAAAY
AABAAAAEAAAAAAAAAAAAAAAAAAAAAgAAAAAAAAA --service-request-channel-token=5765932197625944813

...

I looked in ~/.config/BraveSoftware/Brave-Browser/Default but didn't find anything I recognized as relevant.

I saw discussions about enabling a kernel namespace configuration like this github thread but those reports do not seem current and I am not sure a change of that type would have happened recently though it's possible.

My first concern was to backup my settings. I am not sure how to start without extensions. I saw a brave support template on the brave site but not details on how to check my settings or a process by which to narrow down the causes. Without at least a workaround to get an open window I am limited in exploring the settings very well.

Suggestions welcome!

I want to add a boot option on Grub Customizer that boots to a USB flash drive?

For reference: Grub Customizer.

Running docker, I get this port issue:

ERROR: for mmp_php_1  Cannot start service php: driver failed programming external connectivity on endpoint mmp_php_1 (80f0277f963830426b07e4ae461b8533864822fceb67263a78c27b4ae91d87f5): Error starting userland proxy: listen tcp 0.0.0.0:80: bind: address already in use

ERROR: for php  Cannot start service php: driver failed programming external connectivity on endpoint mmp_php_1 (80f0277f963830426b07e4ae461b8533864822fceb67263a78c27b4ae91d87f5): Error starting userland proxy: listen tcp 0.0.0.0:80: bind: address already in use
ERROR: Encountered errors while bringing up the project.

Then I check the ports and it appears something is using 80.

timothy@13-9360:~/Public/pub/mmp$ ps -eaf | grep 1380
root      1380     2  0 Nov04 ?        00:00:00 [hci0]
timothy  20779  9201  0 08:34 pts/18   00:00:00 grep --color=auto 1380
timothy@13-9360:~/Public/pub/mmp$ netstat -tlnp | grep 80
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      -               
tcp6       0      0 :::8080                 :::*                    LISTEN      -               
tcp6       0      0 :::80                   :::*                    LISTEN      - 

How do I kill whatever process is running here so I can use port 80 again?

My localhost is the apache landing page atm which is weird because I've removed apache from my computer. Not sure why that's happening either.

sudo netstat -tlnp

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:58347           0.0.0.0:*               LISTEN      1029/rpc.mountd 
tcp        0      0 0.0.0.0:5900            0.0.0.0:*               LISTEN      2591/vino-server
tcp        0      0 127.0.0.1:63342         0.0.0.0:*               LISTEN      16215/java      
tcp        0      0 0.0.0.0:44814           0.0.0.0:*               LISTEN      -               
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN      1019/rpcbind    
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      1089/nginx -g daemo
tcp        0      0 127.0.1.1:53            0.0.0.0:*               LISTEN      3036/dnsmasq    
tcp        0      0 0.0.0.0:46357           0.0.0.0:*               LISTEN      1029/rpc.mountd 
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      20431/cupsd     
tcp        0      0 127.0.0.1:29754         0.0.0.0:*               LISTEN      1268/vpnagentd  
tcp        0      0 0.0.0.0:17500           0.0.0.0:*               LISTEN      2696/dropbox    
tcp        0      0 127.0.0.1:6942          0.0.0.0:*               LISTEN      16215/java      
tcp        0      0 0.0.0.0:42622           0.0.0.0:*               LISTEN      1029/rpc.mountd 
tcp        0      0 127.0.0.1:17600         0.0.0.0:*               LISTEN      2696/dropbox    
tcp        0      0 0.0.0.0:2049            0.0.0.0:*               LISTEN      -               
tcp        0      0 127.0.0.1:17603         0.0.0.0:*               LISTEN      2696/dropbox    
tcp6       0      0 :::5672                 :::*                    LISTEN      18276/docker-proxy
tcp6       0      0 :::5900                 :::*                    LISTEN      2591/vino-server
tcp6       0      0 :::59533                :::*                    LISTEN      1029/rpc.mountd 
tcp6       0      0 :::42991                :::*                    LISTEN      1029/rpc.mountd 
tcp6       0      0 :::111                  :::*                    LISTEN      1019/rpcbind    
tcp6       0      0 :::8080                 :::*                    LISTEN      18412/docker-proxy
tcp6       0      0 :::80                   :::*                    LISTEN      1089/nginx -g daemo
tcp6       0      0 ::1:631                 :::*                    LISTEN      20431/cupsd     
tcp6       0      0 :::15672                :::*                    LISTEN      18260/docker-proxy
tcp6       0      0 :::47673                :::*                    LISTEN      1029/rpc.mountd 
tcp6       0      0 :::17500                :::*                    LISTEN      2696/dropbox    
tcp6       0      0 :::35324                :::*                    LISTEN      -               
tcp6       0      0 :::2049                 :::*                    LISTEN      -     

Shouldn't i be able to just change the port like you were saying.

version: '3'
services:
  php:
    build: .
    volumes:
     - ./www:/var/www/html:delegated
     - ./configs:/configs
    links:
     - db:db
     - redis:redis
     - rabbit:rabbit
     - elasticsearch:elasticsearch
    ports:
     -  "80:80"
     -  "443:443"
    extra_hosts:
     -  "localhost.local:127.0.0.1"
    environment:
     - CONFIG__DEFAULT__CATALOG__SEARCH__ELASTICSEARCH_SERVER_HOSTNAME=elasticsearch
  db:
    image: mariadb
    environment:

Today I did an upgrade from Ubuntu 18.04 LTS to 18.10. The update ran without any error message. After the update the sound settings just show "dummy output".

$ pacmd list-cards
2 card(s) available.
index: 0
name: <alsa_card.pci-0000_01_00.1>
driver: <module-alsa-card.c>
owner module: 7
properties:
    alsa.card = "2"
    alsa.card_name = "HDA NVidia"
    alsa.long_card_name = "HDA NVidia at 0xef080000 irq 17"
    alsa.driver_name = "snd_hda_intel"
    device.bus_path = "pci-0000:01:00.1"
    sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2"
    device.bus = "pci"
    device.vendor.id = "10de"
    device.vendor.name = "NVIDIA Corporation"
    device.product.id = "0e1b"
    device.product.name = "GK107 HDMI Audio Controller"
    device.string = "2"
    device.description = "GK107 HDMI Audio Controller"
    module-udev-detect.discovered = "1"
    device.icon_name = "audio-card-pci"
profiles:
    output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
    output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
    output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
    output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
    output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
    output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
    off: Off (priority 0, available: unknown)
active profile: <off>
ports:
    hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
        properties:
            device.icon_name = "video-display"
    hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
        properties:
            device.icon_name = "video-display"
index: 1
name: <alsa_card.usb-Trust_Webcam_Trust_Webcam_Trust_Webcam-02>
driver: <module-alsa-card.c>
owner module: 8
properties:
    alsa.card = "1"
    alsa.card_name = "Trust Webcam"
    alsa.long_card_name = "Trust Webcam Trust Webcam at usb-0000:00:14.0-3, high speed"
    alsa.driver_name = "snd_usb_audio"
    device.bus_path = "pci-0000:00:14.0-usb-0:3:1.2"
    sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3:1.2/sound/card1"
    udev.id = "usb-Trust_Webcam_Trust_Webcam_Trust_Webcam-02"
    device.bus = "usb"
    device.vendor.id = "0c45"
    device.vendor.name = "Microdia"
    device.product.id = "6340"
    device.product.name = "Camera"
    device.serial = "Trust_Webcam_Trust_Webcam_Trust_Webcam"
    device.form_factor = "webcam"
    device.string = "1"
    device.description = "Camera"
    module-udev-detect.discovered = "1"
    device.icon_name = "camera-web-usb"
profiles:
    input:analog-mono: Analog Mono Input (priority 7, available: unknown)
    off: Off (priority 0, available: unknown)
active profile: <input:analog-mono>
sources:
    alsa_input.usb-Trust_Webcam_Trust_Webcam_Trust_Webcam-02.analog-mono/#0: Camera Analog Mono
ports:
    analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: unknown)
        properties:
            device.icon_name = "audio-input-microphone"

lspci

$ lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
01:00.1 Audio device: NVIDIA Corporation GK107 HDMI Audio Controller (rev a1)

destailed lspci

$ sudo lspci -nnk |  grep -A2 Audio
00:1b.0 Audio device [0403]: Intel Corporation 8 Series/C220 Series 
  Chipset High Definition Audio Controller [8086:8c20] (rev 05)
  Subsystem: Hewlett-Packard Company 8 Series/C220 Series Chipset High Definition Audio Controller [103c:1905]
  Kernel driver in use: snd_hda_intel
  Kernel modules: snd_hda_intel
--
01:00.1 Audio device [0403]: NVIDIA Corporation GK107 HDMI Audio 
Controller [10de:0e1b] (rev a1)
  Subsystem: Hewlett-Packard Company GK107 HDMI Audio Controller [103c:094b]
  Kernel driver in use: snd_hda_intel
  Kernel modules: snd_hda_intel

Sound settings:

Additional Drivers:

I initially installed Koha from packages using instructions on this site.

I decided to uninstall it, I used apt-get remove koha-common then I deleted the install dir which was (/usr/share/koha/) permanently. Later when I used apt-get purge koha-common it brings this error:

dpkg: error processing package koha-common (--purge):
 subprocess installed pre-removal script returned exit status 1
Error: /usr/share/koha/bin/koha-functions.sh not present
...
dpkg: error while cleaning up...

This error tends to persist when I try to re-install. As a result I have not been able to re-install. Please, anybody with a solution or a hack on how to overcome this!

How do I find out if my graphics card has the correct drivers? Should I install other drivers? How do I make permanent screen adjustments?

Output of lspci -k | grep -EA2 'VGA|3D|Display':

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Curacao PRO [Radeon R7 370 / R9 270/370 OEM]
    Subsystem: Gigabyte Technology Co., Ltd Device 226c
    Kernel driver in use: radeon

I have typed 'gnome-shell --version' into terminal and got 'GNOME Shell 3.10.4' back. Don't know how to check that specific version number you requested?

Additional Drivers recommendations:

Maybe one of these 3 options is the best one to choose. Which one is better?

Output of uname -a:

Linux username-desktop 4.2.0-42-generic #49~14.04.1-Ubuntu SMP Wed Jun 29 20:22:11 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

I have been trying to follow multiple tutorials, but all of them either reference hidd or bluez-simple-agent.
I have installed bluez bluez-tools bluetooth, but when I run hidd or bluez-simple-agent I get command not found.

I have tried to:

sudo apt-get remove --purge bluez bluez-tools bluetooth && sudo apt-get install bluez bluez-tools bluetooth  

But that yields the same results.

My end goal is to pair a bluetooth keyboard. Any help would be greatly appreciated!

My WiFi connection's been working fine for months and suddenly conked out. It's not the WiFi itself, as my phone and other machines can use it fine. It's my computer that can't connect to it (nor to any other WiFi networks previously used).

I figure it's something to do with the Broadcom drivers, but trying re-installs and purges and fresh installs of b43-firmware and similar things voted as best answers in other questions hasn't helped. At this point I've removed, installed, and re-installed a bunch of things so I don't know what exactly's going on.

Going to System > Software & Updates > Additional Drivers shows "Using Broadcom 802.11 Linux STA wireless driver source from bcmwl-kernel-source (proprietary)"

Here's my Wireless Info Script output. I'm currently connected using a wired (ethernet?) connection.

#### wireless info START

Report from: 26 Jan 2016 17:25 EST -0500

Booted last: 26 Jan 2016 16:53 EST -0500

Script from: 27 Sep 2015 00:34 UTC +0000

release

Distributor ID: Ubuntu Description: Ubuntu 14.04.3 LTS Release: 14.04 Codename: trusty

kernel

Linux 3.13.0-68-generic #111-Ubuntu SMP Fri Nov 6 18:17:06 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

desktop

Ubuntu

lspci

01:00.0 Network controller [0280]: Broadcom Corporation BCM43228 802.11a/b/g/n [14e4:4359] Subsystem: Broadcom Corporation Device [14e4:0607]

03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 07) Subsystem: Lenovo Device [17aa:2219] Kernel driver in use: r8169

lsusb

Bus 002 Device 002: ID 04ca:700b Lite-On Technology Corp. Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 002: ID 0a5c:21f3 Broadcom Corp. Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

PCMCIA card info rfkill

0: tpacpi_bluetooth_sw: Bluetooth Soft blocked: yes Hard blocked: no 2: hci0: Bluetooth Soft blocked: no Hard blocked: no

lsmod

brcmutil 15618 0 mac80211 630728 0 cfg80211 484040 1 mac80211 wmi 19177 0

interfaces

auto lo iface lo inet loopback

auto eth0 iface eth0 inet dhcp

ifconfig

eth0 Link encap:Ethernet HWaddr
inet addr:10.0.0.55 Bcast:10.0.0.255 Mask:255.255.255.0 inet6 addr: fe80::/64 Scope:Link inet6 addr: 2601:41:4200:478b:/64 Scope:Global inet6 addr: 2601:41:4200:478b:4939:9837:89b1:61f8/64 Scope:Global inet6 addr: 2601:41:4200:478b::8f14/128 Scope:Global UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:186174 errors:3 dropped:0 overruns:0 frame:3 TX packets:109429 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:222693024 (222.6 MB) TX bytes:12469299 (12.4 MB)

iwconfig

eth0 no wireless extensions.

lo no wireless extensions.

route

Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.0.0.1 0.0.0.0 UG 0 0 0 eth0 10.0.0.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0

resolv.conf

nameserver 75.75.75.75 nameserver 75.75.76.76 nameserver 127.0.1.1 search hsd1.pa.comcast.net

network managers

Installed:

NetworkManager

Running:

root 2555 1 0 06:53 ? 00:00:01 NetworkManager

NetworkManager info

NetworkManager Tool

State: connected (global)

• Device: eth0 [Ifupdown (eth0)] ---------------------------------------------- Type: Wired Driver: r8169 State: connected Default: yes HW Address:

  Capabilities: Carrier Detect: yes Speed: 1000 Mb/s

  Wired Properties Carrier: on

  IPv4 Settings: Address: 10.0.0.55 Prefix: 24 (255.255.255.0) Gateway: 10.0.0.1

  DNS: 75.75.75.75 DNS: 75.75.76.76

  IPv6 Settings: Address: 2601:41:4200:478b::8f14 Prefix: 128 Gateway: fe80::bcd1:65ff:fe8c:8b68

  Address: 2601:41:4200:478b:4939:9837:89b1:61f8 Prefix: 64 Gateway: fe80::bcd1:65ff:fe8c:8b68

  Address: 2601:41:4200:478b: Prefix: 64 Gateway: fe80::bcd1:65ff:fe8c:8b68

  Address: fe80:: Prefix: 64 Gateway: fe80::bcd1:65ff:fe8c:8b68

  Address: 2601:41:4200:478b::8f14 Prefix: 128 Gateway: ::

  DNS: 2001:558:feed::1 DNS: 2001:558:feed::2

NetworkManager.state

[main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true

NetworkManager.conf

[main] plugins=ifupdown,keyfile,ofono dns=dnsmasq

[ifupdown] managed=true

NetworkManager profiles

[[/etc/NetworkManager/system-connections/hhonors]] (600 root) [connection] id=hhonors | type=802-11-wireless [802-11-wireless] ssid=hhonors | mac-address= [ipv6] method=auto [ipv4] method=auto

[[/etc/NetworkManager/system-connections/HOME-8B65-5]] (600 root) [connection] id=HOME-8B65-5 | type=802-11-wireless [802-11-wireless] ssid=HOME-8B65-5 | mac-address= [ipv4] method=auto [ipv6] method=auto

[[/etc/NetworkManager/system-connections/MIFI-LIBERATE-VA97]] (600 root) [connection] id=MIFI-LIBERATE-VA97 | type=802-11-wireless [802-11-wireless] ssid=MIFI-LIBERATE-VA97 | mac-address= [ipv4] method=auto [ipv6] method=auto

[[/etc/NetworkManager/system-connections/AirPennNet]] (600 root) [ipv6] method=auto [connection] id=AirPennNet | type=802-11-wireless [802-11-wireless] ssid=AirPennNet [802-1x] ca-cert=/home/matthew/.certificates/Student-CA.pem [ipv4] method=auto

[[/etc/NetworkManager/system-connections/IM ON A BUFFALOOO]] (600 root) [connection] id=Network | type=802-11-wireless [802-11-wireless] ssid=Network | mac-address= [ipv4] method=auto [ipv6] method=auto

[[/etc/NetworkManager/system-connections/AirPennNet-Help]] (600 root) [connection] id=AirPennNet-Help | type=802-11-wireless | autoconnect=false [802-11-wireless] ssid=AirPennNet-Help | mac-address= [ipv6] method=auto [ipv4] method=auto

[[/etc/NetworkManager/system-connections/M-Network]] (600 root) [connection] id=M-Network | type=802-11-wireless [802-11-wireless] ssid=M-Network | mac-address= [ipv4] method=auto [ipv6] method=auto

iw reg get

Region: America/New_York (based on set time zone)

country 00: (2402 - 2472 @ 40), (3, 20) (2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS (2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS (5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS (5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS

iwlist channels

eth0 no frequency information.

lo no frequency information.

iwlist scan

eth0 Interface doesn't support scanning.

lo Interface doesn't support scanning.

module infos

[brcmutil] filename: /lib/modules/3.13.0-68-generic/kernel/drivers/net/wireless/brcm80211/brcmutil/brcmutil.ko license: Dual BSD/GPL description: Broadcom 802.11n wireless LAN driver utilities. author: Broadcom Corporation srcversion: E81EE4CBB6A7A689150D93D depends:
intree: Y vermagic: 3.13.0-68-generic SMP mod_unload modversions signer: Magrathea: Glacier signing key sig_key: 45:B8:6D:4B:28:3F:CA:04:40:EC:04:F3:A7:A2:BC:67:5B:F4:69:44 sig_hashalgo: sha512

[mac80211] filename: /lib/modules/3.13.0-68-generic/kernel/net/mac80211/mac80211.ko license: GPL description: IEEE 802.11 subsystem srcversion: CD516ABEC909374CB2C52DC depends: cfg80211 intree: Y vermagic: 3.13.0-68-generic SMP mod_unload modversions signer: Magrathea: Glacier signing key sig_key: 45:B8:6D:4B:28:3F:CA:04:40:EC:04:F3:A7:A2:BC:67:5B:F4:69:44 sig_hashalgo: sha512 parm: max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int) parm: max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int) parm: beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int) parm: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int) parm: ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)

[cfg80211] filename: /lib/modules/3.13.0-68-generic/kernel/net/wireless/cfg80211.ko description: wireless configuration support license: GPL author: Johannes Berg srcversion: 695424C2F5CD23A91B67E25 depends:
intree: Y vermagic: 3.13.0-68-generic SMP mod_unload modversions signer: Magrathea: Glacier signing key sig_key: 45:B8:6D:4B:28:3F:CA:04:40:EC:04:F3:A7:A2:BC:67:5B:F4:69:44 sig_hashalgo: sha512 parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp) parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

module parameters

[mac80211] beacon_loss_count: 7 ieee80211_default_rc_algo: minstrel_ht max_nullfunc_tries: 2 max_probe_tries: 5 probe_wait_ms: 500

[cfg80211] cfg80211_disable_40mhz_24ghz: N ieee80211_regdom: 00

/etc/modules

lp rtc

modprobe options

[/etc/modprobe.d/blacklist-ath_pci.conf] blacklist ath_pci

[/etc/modprobe.d/blacklist-bcm43.conf] blacklist b43 blacklist b43legacy blacklist ssb blacklist bcm43xx blacklist brcm80211 blacklist brcmfmac blacklist brcmsmac blacklist bcma

[/etc/modprobe.d/blacklist.conf] blacklist evbug blacklist usbmouse blacklist usbkbd blacklist eepro100 blacklist de4x5 blacklist eth1394 blacklist snd_intel8x0m blacklist snd_aw2 blacklist i2c_i801 blacklist prism54 blacklist garmin_gps blacklist asus_acpi blacklist snd_pcsp blacklist pcspkr blacklist amd76x_edac blacklist eth1 blacklist eth1_cs blacklist lo blacklist lo1_cs

[/etc/modprobe.d/blacklist-rare-network.conf] alias net-pf-3 off alias net-pf-6 off alias net-pf-9 off alias net-pf-11 off alias net-pf-12 off alias net-pf-19 off alias net-pf-21 off alias net-pf-36 off

[/etc/modprobe.d/iwlwifi.conf] remove iwlwifi \ (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \ && /sbin/modprobe -r mac80211

[/etc/modprobe.d/mlx4.conf] softdep mlx4_core post: mlx4_en

rc.local

exit 0

pm-utils udev rules

[/etc/udev/rules.d/70-persistent-net.rules]

PCI device 0x10ec:0x8168 (r8169)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?", ATTR{address}=="", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth", NAME="eth0"

PCI device 0x14e4:0x4359 (wl)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?", ATTR{address}=="", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan", NAME="wlan0"

dmesg

[ 513.278974] WARNING: CPU: 2 PID: 654 at /build/linux-FE4z5Q/linux-3.13.0/drivers/base/firmware_class.c:1092 _request_firmware+0x5f9/0xb20() [ 513.279041] Modules linked in: rfcomm bnep binfmt_misc uvcvideo btusb videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core videodev snd_hda_codec_realtek amd_freq_sensitivity snd_hda_codec_hdmi kvm snd_hda_intel thinkpad_acpi nvram snd_hda_codec joydev snd_hwdep fam15h_power serio_raw k10temp edac_core snd_seq_midi snd_seq_midi_event snd_pcm edac_mce_amd bcma rtsx_pci_ms memstick i2c_piix4 snd_rawmidi snd_page_alloc parport_pc snd_seq shpchp snd_seq_device ppdev snd_timer snd lp parport soundcore mac_hid dm_crypt crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rtsx_pci_sdmmc aesni_intel radeon aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_algo_bit ttm psmouse drm_kms_helper ahci drm r8169 libahci rtsx_pci mii wmi video [ 513.279103] [] _request_firmware+0x5f9/0xb20 [ 513.279107] [] request_firmware+0x34/0x50 [ 513.279181] usb 3-2: firmware: fw-0a5c_21f3.hcd will not be loaded [ 513.279185] Bluetooth: can't load firmware, may not work correctly [ 513.358256] bcma-pci-bridge 0000:01:00.0: no hotplug settings from platform [ 514.082628] r8169 0000:03:00.0 eth0: link down [ 514.082742] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 546.902379] r8169 0000:03:00.0 eth0: link up [ 546.902409] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

#### wireless info END

Let me know if anything more would help.

Thanks!

EDIT 1: Per commented request,

sudo modprobe wl && dmesg | grep wl

returns

modprobe: FATAL: Module wl not found.

which I'm guessing means something...

EDIT 2: Per answer,

sudo apt-get update

Printed a bunch of stuff but appeared to throw no errors. However,

sudo apt-get install --reinstall bcmwl-kernel-source

ran into an issue with wl again. Here's the output:

The following NEW packages will be installed:
bcmwl-kernel-source
0 upgraded, 1 newly installed, 0 to remove and 5 not upgraded.
Need to get 0 B/1,512 kB of archives.
After this operation, 8,038 kB of additional disk space will be used.
Selecting previously unselected package bcmwl-kernel-source.
(Reading database ... 413219 files and directories currently installed.)
Preparing to unpack .../bcmwl-kernel-source_6.30.223.248+bdcom- 0ubuntu0.1_amd64.deb ...
Unpacking bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu0.1) ...
Setting up bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu0.1) ...
Loading new bcmwl-6.30.223.248+bdcom DKMS files...
First Installation: checking all kernels...
Building only for 3.13.0-68-generic
Building for architecture x86_64
Module build for the currently running kernel was skipped since the kernel source for this kernel does not seem to be installed.
modprobe: FATAL: Module wl not found.
update-initramfs: deferring update (trigger activated)
Processing triggers for initramfs-tools (0.103ubuntu4.2) ...
update-initramfs: Generating /boot/initrd.img-3.13.0-68-generic

EDIT 3: Entering

sudo apt-get install linux-headers-generic

returned

linux-headers-generic is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.

and entering

sudo apt-get install --reinstall bcmwl-kernel-source

returned

0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 5 not upgraded.
Need to get 0 B/1,512 kB of archives.
After this operation, 0 B of additional disk space will be used.
(Reading database ... 413294 files and directories currently installed.)
Preparing to unpack .../bcmwl-kernel-source_6.30.223.248+bdcom-0ubuntu0.1_amd64.deb ...
Removing all DKMS Modules
Done.
Unpacking bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu0.1) over (6.30.223.248+bdcom-0ubuntu0.1) ...
Setting up bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu0.1) ...
Loading new bcmwl-6.30.223.248+bdcom DKMS files...
Building only for 3.13.0-68-generic
Building for architecture x86_64
Module build for the currently running kernel was skipped since the kernel source for this kernel does not seem to be installed. modprobe: FATAL: Module wl not found.
update-initramfs: deferring update (trigger activated)
Processing triggers for initramfs-tools (0.103ubuntu4.2) ...
update-initramfs: Generating /boot/initrd.img-3.13.0-68-generic

(sudo modprobe wl also returned FATAL: Module wl not found).

EDIT 4:

Entering

sudo apt-get install linux-generic

produced

The following extra packages will be installed:
linux-image-3.13.0-76-generic linux-image-extra-3.13.0-76-generic
linux-image-generic
Suggested packages:
fdutils linux-doc-3.13.0 linux-source-3.13.0 linux-tools
The following NEW packages will be installed:
linux-generic linux-image-3.13.0-76-generic
linux-image-extra-3.13.0-76-generic linux-image-generic
0 upgraded, 4 newly installed, 0 to remove and 5 not upgraded.
Need to get 52.0 MB of archives.
After this operation, 194 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main linux-image-3.13.0-76-generic amd64 3.13.0-76.120 [15.2 MB]
Get:2 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main linux-image-extra-3.13.0-76-generic amd64 3.13.0-76.120 [36.8 MB]
Get:3 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main linux-image-generic amd64 3.13.0.76.82 [2,250 B]
Get:4 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main linux-generic amd64 3.13.0.76.82 [1,780 B]
Fetched 52.0 MB in 3s (16.3 MB/s)
Selecting previously unselected package linux-image-3.13.0-76-generic.
(Reading database ... 413294 files and directories currently installed.)
Preparing to unpack .../linux-image-3.13.0-76-generic_3.13.0-76.120_amd64.deb ...
Done.
Unpacking linux-image-3.13.0-76-generic (3.13.0-76.120) ...
Selecting previously unselected package linux-image-extra-3.13.0-76-generic.
Preparing to unpack .../linux-image-extra-3.13.0-76-generic_3.13.0-76.120_amd64.deb ...
Unpacking linux-image-extra-3.13.0-76-generic (3.13.0-76.120) ...
Selecting previously unselected package linux-image-generic.
Preparing to unpack .../linux-image-generic_3.13.0.76.82_amd64.deb ...
Unpacking linux-image-generic (3.13.0.76.82) ...
Selecting previously unselected package linux-generic.
Preparing to unpack .../linux-generic_3.13.0.76.82_amd64.deb ...
Unpacking linux-generic (3.13.0.76.82) ...
Setting up linux-image-3.13.0-76-generic (3.13.0-76.120) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
run-parts: executing /etc/kernel/postinst.d/dkms 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
update-initramfs: Generating /boot/initrd.img-3.13.0-76-generic
run-parts: executing /etc/kernel/postinst.d/pm-utils 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
Generating grub configuration file ...
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.
Found linux image: /boot/vmlinuz-3.13.0-76-generic
Found initrd image: /boot/initrd.img-3.13.0-76-generic
Found linux image: /boot/vmlinuz-3.13.0-68-generic
Found initrd image: /boot/initrd.img-3.13.0-68-generic
Found linux image: /boot/vmlinuz-3.13.0-66-generic
Found initrd image: /boot/initrd.img-3.13.0-66-generic
Found memtest86+ image: /memtest86+.elf
Found memtest86+ image: /memtest86+.bin
done
Setting up linux-image-extra-3.13.0-76-generic (3.13.0-76.120) ...
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
run-parts: executing /etc/kernel/postinst.d/dkms 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
update-initramfs: Generating /boot/initrd.img-3.13.0-76-generic
run-parts: executing /etc/kernel/postinst.d/pm-utils 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.13.0-76-generic /boot/vmlinuz-3.13.0-76-generic
Generating grub configuration file ...
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.
Found linux image: /boot/vmlinuz-3.13.0-76-generic
Found initrd image: /boot/initrd.img-3.13.0-76-generic
Found linux image: /boot/vmlinuz-3.13.0-68-generic
Found initrd image: /boot/initrd.img-3.13.0-68-generic
Found linux image: /boot/vmlinuz-3.13.0-66-generic
Found initrd image: /boot/initrd.img-3.13.0-66-generic
Found memtest86+ image: /memtest86+.elf
Found memtest86+ image: /memtest86+.bin
done
Setting up linux-image-generic (3.13.0.76.82) ...
Setting up linux-generic (3.13.0.76.82) ...

which looked promising, but upon reboot WiFi still fails. However, now

sudo modprobe wl

produces

modprobe: ERROR: ../libkmod/libkmod.c:556 kmod_search_moddep() could not open moddep file '/lib/modules/3.13.0-76-generic/modules.dep.bin'

if that's relevant.

I hope the follow information will help. Here's a log. http://www.alsa-project.org/db/?f=07089caf530494bc4bc23e1d1cd56b3a5fae03c6

I already checked System -> Preferences -> Sound.

> jorge@jorge-desktop:~$ sudo lshw -class multimedia     
> *-multimedia  
>        description: Multimedia audio controller
>        product: VT8233/A/8235/8237 AC97 Audio Controller
>        vendor: VIA Technologies, Inc.
>        physical id: 11.5
>        bus info: pci@0000:00:11.5
>        version: 60
>        width: 32 bits
>        clock: 33MHz
>        capabilities: pm cap_list
>        configuration: driver=VIA 82xx Audio latency=0
>        resources: irq:22 ioport:e400(size=256)

Tried with no results:

>     sudo apt-get remove --purge alsa-base
>     sudo apt-get remove --purge pulseaudio
>     sudo apt-get clean && sudo apt-get autoremove
>     sudo apt-get install alsa-base
>     sudo apt-get install pulseaudio
>     sudo apt-get install ubuntu-desktop

Also

>     sudo gedit /etc/default/grub
> 
> from:
> 
> GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
> 
> to:
> 
> GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1"
> 
>     sudo update-grub
> 
> And Reboot... without any result.

I made sure that everything it's fine with aplay -l and lspci -v and lsmod; and checked alsamixer. It's not in mute.