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.

Since today, I have a cryptsetup: Waiting for encrypted source device UUID=<personal-UUID> boot problem with my MSI Cyborg 15 A13VF-1461 laptop. It has a GRUB dual-boot system installed (Ubuntu 24.04 and Windows 11 Pro) and the Linux partition is encrypted with LUKS. I have accomplished to set up my computer this way by following the steps of this tutorial.

Unfortunately, I cannot use this answer that was posted almost four years ago because I have no System Configuration -> Sata Operation option. The advanced settings of my BIOS look like this:

Enable VMD controller                   [Enabled]
Intel(R) Speed Shift Technology         [Enabled]
ERP lot 3 support                       [Disabled]
Wake up On Lan S5 support               [Enabled]
BACKSLASH/ALT Key Swap                  [Disabled]
Network Stack                           [Disabled]
Intel Virtualization Technology         [Enabled]
VT-d                                    [Enabled]
Hyper-Threading                         [Enabled]
CPU C states                            [Enabled]
Allow BIOS Downgrade                    [Disabled]
User Scenario                           [Balance Mode]
GSE mode                                [Enabled]
ME firmware Windows Update              [Enabled]
MSI VGA MODE                            [MS-Hybrid MODE]
USB Power Share in Hibernation and S... [Disabled]
USB Power Share Mode                    [AC Only]

> RC ACPI Settings
> Connectivity Configuration
> CPU Configuration
> Power & Performance
> Security Agent (SA) Configuration
> PCH-IO Configuration
> PCH-FW Configuration
> Thermal Configuration
> Platform Settings
> ACPI D3Cold settings
> OverClocking Performance Menu
> BCLK Configuration
> Debug Settings
> Debug Configuration
> ACPI Settings
> Tis Auth Configuration
> IPv4 Network Configuration
> IPv6 Network Configuration

> MAC Address Pass Through
> SMART Settings
> UEFI Variables Protection
> Serial Port Console Redirection
> Intel TXT Information
> Acoustic Management Configuration
> Switchable Graphics
> AMI Graphic Output Protocol Policy
> SIO Common Setting
> SIO Configuration
> PCI Subsystem Settings
> USB Configuration
> Network Stack Configuration
> CSM Configuration
> NVMe Configuration
> SDIO Configuration
> UEFI BIOS Update
> Intel(R) Rapid Storage Technology

What can I do to solve the problem?

In Ubuntu 24.04 with GNOME Shell 46.0, when I press super the activities overview is displayed. What is the keyboard shortcut to close the currently selected window from this view ?
Alt + F4 does not seem to work for me. There is nothing relevant in the settings .

Thanks!

I have a problem with bluetooth on my laptop Lenovo R7000P with processor AMD 8945HX and Ubuntu 24.04.3 LTS.

I can't use Bluetooth, it doesn't work. When I try to turn on Bluetooth the button is greyed out.

I searched, and in the end, DeepSeek advice helped me: It wrote the following list of commands, which restarts the driver and really helps.

sudo modprobe -r btusb  
sleep 2  
sudo modprobe btusb  
sudo systemctl restart bluetooth

But these commands need to be executed every time I restart the computer. I can automate this so that the file runs itself every time, but I don't like it, I want to fix the problem. I have dual-boot with Windows, and Bluetooth is running on Windows.

All drivers and system are updated...

I am trying to share my screen from my laptop (Kubuntu 25.10, but the same issue on 24.04) to two different Miracast receivers: a TV and a dongle. Both receivers are usable from my Android mobile.

I fixed everything and debugged what I could. I can verify that I can establish a working connection using "gnome-network-devices" (which is said to work fine under KDE), but only a black screen is shared. It seems that capturing does not work on the kubuntu system.

I dug deeper and it seems that no pipewire source is created by KWin, apparently because support for that has not been compiled in. Which puzzles me.

Can someone explain to me or point me to information about why this feature has been disabled in Kubuntu? Or where I went wrong, what I might miss, what I could check?

I see this and if I understand correctly then the pipewire source is missing in there: :

> pactl list sinks short
56      alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__HDMI3__sink     PipeWire        s24-32le 2ch 48000Hz    SUSPENDED
57      alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__HDMI2__sink     PipeWire        s24-32le 2ch 48000Hz    SUSPENDED
58      alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__HDMI1__sink     PipeWire        s24-32le 2ch 48000Hz    SUSPENDED
59      alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__Speaker__sink   PipeWire        s32le 2ch 48000Hz       SUSPENDED

And these deliver nothing :

strings /usr/bin/kwin_wayland | grep -i pipewire

ldd /usr/bin/kwin_wayland | grep pipewire

I get this when debugging the xdg portal:

xdg-desktop-portal-kde: QDBusConnection: couldn't handle call to CreateMonitor, 
no slot matched Could not find slot 
InhibitPortal::CreateMonitor 
No such method 'CreateMonitor' in interface 'org.freedesktop.impl.portal.Inhibit' 

At first I thought this is about a version mismatch, but the versions look fine to me.

I also see this:

codec list not initialized 
No resolution found, falling back to standard FullHD resolution 

which looks strange to me.

Desktop environment was recently changed from Unity to Plasma KDE. Initially both environments worked fine. A few days later, while attempting to revert to Ubuntu environment, the login screen only presented me with the computer owner's name instead of the user name. Since the computer's owner name is not the login name I am locked out of the system. It will not accept logon attempts even when I supply the actual login name. I cannot change the Desktop manager.

All attempts to get the system to offer the actual login name have failed. What does one do? Why does the system present the computer owner's name when it is two names, both capitalized and separated by a space? This is a daunting situation for a novice.

Last night my Dell 7590 on Ubuntu 24.04.3 LTS ran fine. This morning there was no network except lo and I didn’t do any updates.

ifconfig only shows lo running, but no other interfaces hard or WiFi. It’s hard to include much here because it can’t connect, so I can either add photos or hand type.

uname -a
Linux TreeClimberLap 6.17.0-14-generic #14~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Jan 15 15:52:10 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

I was able to get some information off of the computer to a USB and I'm uploading it here.

What drew my attention to this is that something went wrong with nvidia at the same time and without the network I couldn't solve it. It does appear that some quiet upgrade occurred. I just tried sudo apt autoremove, and here is the relevant error I see there. I wonder if they have a common root cause.

Setting up linux-modules-nvidia-570-6.17.0-14-generic (6.17.0-14.14~24.04.1+1) ...
linux-image-nvidia-6.17.0-14-generic: constructing .ko files
/usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring
/usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring
/usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring
/usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring
/usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring
/usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring
/usr/bin/ld.bfd: warning: --package-metadata is empty, ignoring
/usr/bin/ld.bfd: cannot open linker script file /usr/src/linux-headers-6.17.0-14-generic/scripts/module.lds: No such file or directory
/usr/bin/ld.bfd: cannot open linker script file /usr/src/linux-headers-6.17.0-14-generic/scripts/module.lds: No such file or directory
/usr/bin/ld.bfd: cannot open linker script file /usr/src/linux-headers-6.17.0-14-generic/scripts/module.lds: No such file or directory
/usr/bin/ld.bfd: cannot open linker script file /usr/src/linux-headers-6.17.0-14-generic/scripts/module.lds: No such file or directory
/usr/bin/ld.bfd: cannot open linker script file /usr/src/linux-headers-6.17.0-14-generic/scripts/module.lds: No such file or directory
sha256sum: nvidia-drm.ko: No such file or directory
nvidia-drm.ko: FAILED open or read
sha256sum: nvidia-modeset.ko: No such file or directory
nvidia-modeset.ko: FAILED open or read
sha256sum: nvidia-peermem.ko: No such file or directory
nvidia-peermem.ko: FAILED open or read
sha256sum: nvidia-uvm.ko: No such file or directory
nvidia-uvm.ko: FAILED open or read
sha256sum: nvidia.ko: No such file or directory
nvidia.ko: FAILED open or read
sha256sum: WARNING: 5 listed files could not be read
dpkg: error processing package linux-modules-nvidia-570-6.17.0-14-generic (--configure):
 installed linux-modules-nvidia-570-6.17.0-14-generic package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of linux-modules-nvidia-570-generic-hwe-24.04:
linux-modules-nvidia-570-generic-hwe-24.04 depends on linux-modules-nvidia-570-6.17.0-14-generic (= 6.17.0-14.14~24.04.1+1); however:
Package linux-modules-nvidia-570-6.17.0-14-generic is not configured yet.

dpkg: error processing package linux-modules-nvidia-570-generic-hwe-24.04 (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                         Errors were encountered while processing:
linux-modules-nvidia-570-6.17.0-14-generic
linux-modules-nvidia-570-generic-hwe-24.04
E: Sub-process /usr/bin/dpkg returned an error code (1)

So, from this I think I need the kernel headers. So I downloaded and tried to install them (a pain with a USB drive and a Windows machine to do the downloads).

linux-headers-6.17.0-14_6.17.0-14.14_all.deb
linux-headers-6.17.0-14-generic_6.17.0-14.14_amd64.deb
linux-hwe-6.17-headers-6.17.0-14_6.17.0-14.14~24.04.1_all.deb

When I installed them it said the gcc version used for v4l was different than what was installed. It was built with gcc 15.2 and I have 13 something. It looks like getting that installed is not easy. I'm really puzzled how this went so wrong. There must be a lot of people out there with similar problems.

On the original thread, however, here is more info:

In dmesg a search for iwl returns nothing, netw only returns one hit and this is the context:

[    0.578040] intel_pstate: Intel P-state driver initializing
[    0.580367] intel_pstate: Disabling energy efficiency optimization
[    0.580368] intel_pstate: HWP enabled
[    0.580505] simple-framebuffer simple-framebuffer.0: [drm] Registered 1 planes with drm panic
[    0.580508] [drm] Initialized simpledrm 1.0.0 for simple-framebuffer.0 on minor 0
[    0.586525] fbcon: Deferring console take-over
[    0.586528] simple-framebuffer simple-framebuffer.0: [drm] fb0: simpledrmdrmfb frame buffer device
[    0.586775] drop_monitor: Initializing network drop monitor service
[    0.586879] NET: Registered PF_INET6 protocol family
[    0.587325] Segment Routing with IPv6
[    0.587332] In-situ OAM (IOAM) with IPv6
[    0.587347] NET: Registered PF_PACKET protocol family
[    0.587475] Key type dns_resolver registered
[    0.588397] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
[    0.588798] microcode: Current revision: 0x000000fa
[    0.589237] IPI shorthand broadcast: enabled
[    0.591020] sched_clock: Marking stable (578001006, 12692452)->(650048205, -59354747)
[    0.591302] registered taskstats version 1

uname -a
Linux TreeClimberLap 6.17.0-14-generic #14~24.04.1-Ubuntu SMP PREEMPT\_DYNAMIC Thu Jan 15 15:52:10 UTC 2 x86\_64 x86\_64 x86\_64 GNU/Linux

sudo nmcli device
DEVICE  TYPE      STATE                   CONNECTION 
lo      loopback  connected (externally)  lo         

service NetworkManager status

● NetworkManager.service - Network Manager
Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; preset: enabled)
;    Active: active (running) since Wed 2026-02-11 14:38:02 EST; 58min ago
Docs: man:NetworkManager(8)
Main PID: 1217 (NetworkManager)
Tasks: 4 (limit: 37915)
Memory: 16.4M (peak: 33.9M)
CPU: 409ms
CGroup: /system.slice/NetworkManager.service
└─1217 /usr/sbin/NetworkManager --no-daemon
Feb 11 14:38:02 TreeClimberLap NetworkManager[1217]:   [1770838682.2954] device (lo): state change: prepare -> config (reason 'none', sys-iface-state: 'external')
Feb 11 14:38:02 TreeClimberLap NetworkManager[1217]:   [1770838682.2957] device (lo): state change: config -> ip-config (reason 'none', sys-iface-state: 'external')
Feb 11 14:38:02 TreeClimberLap NetworkManager[1217]:   [1770838682.2960] device (lo): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'external')
Feb 11 14:38:02 TreeClimberLap NetworkManager[1217]:   [1770838682.2974] modem-manager: ModemManager available
Feb 11 14:38:02 TreeClimberLap NetworkManager[1217]:   [1770838682.2978] device (lo): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'external')
Feb 11 14:38:02 TreeClimberLap NetworkManager[1217]:   [1770838682.2980] device (lo): state change: secondaries -> activated (reason 'none', sys-iface-state: 'external')
Feb 11 14:38:02 TreeClimberLap NetworkManager[1217]:   [1770838682.2984] device (lo): Activation: successful, device activated.
Feb 11 14:38:02 TreeClimberLap NetworkManager[1217]:   [1770838682.2987] manager: startup complete
Feb 11 14:38:23 TreeClimberLap NetworkManager[1217]:   [1770838703.9352] agent-manager: agent[b4d889c0df790dd6,:1.51/org.gnome.Shell.NetworkAgent/120]: agent registered
Feb 11 14:38:30 TreeClimberLap NetworkManager[1217]:   [1770838710.7145] agent-manager: agent[d49ef0ec152592c5,:1.83/org.gnome.Shell.NetworkAgent/1000]: agent registered

lspci -knn | grep Net -A2
3b:00.0 Network controller \[0280]: Intel Corporation Wi-Fi 6 AX200 \[8086:2723] (rev 1a)
    Subsystem: Rivet Networks Killer Wi-Fi 6 AX1650x (AX200NGW) \[1a56:1654]
3c:00.0 Unassigned class \[ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader \[10ec:525a] (rev 01)
    Subsystem: Dell RTS525A PCI Express Card Reader \[1028:0905]

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.

I have a machine running Ubuntu 22.04. This machine is connected to two storage devices: an HP 3Par and a Hitachi E590. The machine is a ProLiant BL460c Gen9 blade with an HP QMH2672 16Gb FC HBA for BladeSystem c-Class dual-port HBA.

After installing the Linux operating system, I configured connectivity to the 3Par storage device. There were no problems. Everything worked smoothly, and filesystem mapping functioned without an issue.

I'm having a problem with connectivity to the Hitachi storage device. Although I configured the zoning and everything else, and the server recognized the volumes, upon restarting the server no longer detected connectivity to the Hitachi.

After several tests with the storage provider, they indicated that the problem might be a missing Full LIP Reset during boot. This process was performed by modifying grub and rc.local. Without mounting the resource and restarting the computer, it starts without problems, but if I define the mount point in fstab, the server cannot find the specified mount point. I need help from the experts.

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 reach internet connection. I've also manually updated the kernel, as someone suggested, but still no internet.

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      --     >

I'd like to do the same thing like that:

Increase number of old kernels to keep on autoremove

but in Ubuntu 22.04 I can't find the apt-auto-removal file.

Update:

These are the contents of this directory.

00aptitude        15update-stamp      20packagekit          60icons
00trustcdrm       20apt-esm-hook.conf 20snapd.conf          60icons-hidpi
01autoremove      20archive           50appstream           70debconf
01-vendor-ubuntu  20auto-upgrades     50command-not-found   99update-notifier
10periodic        20dbus              50unattended-upgrades

and I have an "01autoremove" file, and this is what I have inside:

/etc/apt/apt.conf.d$ cat 01autoremove :

APT
{
  NeverAutoRemove
  {
    "^firmware-linux.*";
    "^linux-firmware$";
    "^linux-image-[a-z0-9]*$";
    "^linux-image-[a-z0-9]*-[a-z0-9]*$";
  };

  VersionedKernelPackages
  {
    # kernels
    "linux-.*";
    "kfreebsd-.*";
    "gnumach-.*";
    # (out-of-tree) modules
    ".*-modules";
    ".*-kernel";
  };

  Never-MarkAuto-Sections
  {
    "metapackages";
    "contrib/metapackages";
    "non-free/metapackages";
    "restricted/metapackages";
    "universe/metapackages";
    "multiverse/metapackages";
  };

  Move-Autobit-Sections
  {
    "oldlibs";
    "contrib/oldlibs";
    "non-free/oldlibs";
    "restricted/oldlibs";
    "universe/oldlibs";
    "multiverse/oldlibs";
  };
};

Do you know what I need to change?

I have problems with GPU rendering. A game (forgeofempires.com) has some visual errors.

Background image gets random black lines/pixels. screenshot: https://ibb.co/P15z4t1

Text disappears/gets unreadable/tangled

Pages(parts) disappear, not visible, but html elements are there can bee seen "tips" if I hoover over mouse. screenshots:

https://ibb.co/tMHwGJF

https://ibb.co/5MGG4z1

https://ibb.co/4SSvNfr

Reloading the page(game) works for a short time, but these errors will come up again for sure.

If I would know the actual locations of the html elements, I could click them and it would work. The problem is with displaying them is that I can't see them.

VGA card:

Results of sudo lspci -v -s $(lspci | grep ' VGA ' | cut -d" " -f 1) :

02:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530 [Radeon X1600 PRO] (prog-if 00 [VGA controller])
        Subsystem: ASUSTeK Computer Inc. RV530 [Radeon X1600 PRO]
        Flags: bus master, fast devsel, latency 0, IRQ 31, NUMA node 0
        Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Memory at fbbe0000 (64-bit, non-prefetchable) [size=64K]
        I/O ports at c000 [size=256]
        Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] Express Endpoint, MSI 00
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit+
        Kernel driver in use: radeon
        Kernel modules: radeon

It's an old ATI vga card.

Results of lsb_release -a :

 No LSB modules are available.  
 Distributor ID: Ubuntu  
 Description:    Ubuntu 20.04.2 LTS  
 Release:        20.04  
 Codename:       focal  

My desktop environment is LXQT/openbox.

Chromium GPU report: chrome://gpu/

Chromium is latest snap version (88.0.4324.96).

VGA driver is latest ppa oibaf driver (https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers)

If hardware acceleration is disabled the game is painfully slow. It takes minutes to open menu items.

I'm an ex-Windows user I used it for many years. Learned some Linux basics at school years ago, and now finally convinced myself to use Linux on an everyday basis. I can say that I'm an inexperienced newbie.

I'm open to any suggestions. Maybe If somehow GPU could be forced to redraw the screen could help, but how can I do it? Or maybe the vga driver should be replaced. Any advice is welcome!

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 have a public interface on a Ubuntu 18.04 VM hosted by a provider that uses OpenStack. Now I want to add a second extra interface for the internal network. I'm not sure how to do that.

Using the web interface of the hosting provider I can add the internal network. After I add this I can see the network interface but no IP address is assigned. Reboot also doesn't help here.

So for example ip a shows

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue 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: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether fa:16:3e:e7:0b:19 brd ff:ff:ff:ff:ff:ff
    inet (MY PUBLIC IP)/24 brd 185.110.173.255 scope global dynamic ens3
       valid_lft 84480sec preferred_lft 84480sec
    inet6 fe80::f816:3eff:fee7:b19/64 scope link 
       valid_lft forever preferred_lft forever
3: ens7: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether fa:16:3e:e3:4f:3f brd ff:ff:ff:ff:ff:ff

My public ip shows up but the interface I added gets no IP address.

I added the ens7 interface to /etc/netplan/50-cloud-init.yaml as follows

# This file is generated from information provided by
# the datasource.  Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
    version: 2
    ethernets:
        ens3:
            dhcp4: true
            match:
                macaddress: fa:16:3e:e7:0b:19
            set-name: ens3
        ens7:
            dhcp4: true
            match:
                macaddress: fa:16:3e:e3:4f:3f
            set-name: ens7

When I run netplan apply my SSH connection is immediately disconnected and I can no longer access the machime from the internet.

When I use the console and run ip a I see exactly the results I expected however. ens3 has the correct public IP and ens7 has the correct private ip.

I also have a Ubuntu 16.04 VM. Using that cloud image I was able to do this by editing /etc/network/interfaces.d/50-cloud-init.cfg and adding

auto eth1
iface eth1 inet dhcp

But now I want to do something similar on Ubuntu 18.04 VM.

Why am I unable to access the machine using SSH from the internet? IP configuration looks okay.

What is the correct way to add a VM to a second internal private network when using an Ubuntu 18.04 cloud image on OpenStack?

BTW, I am using Ubuntu cloud image bionic-server-cloudimg-amd64.img

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 have a laptop with integrated Intel GPU and GeForce 940MX. With nouveau driver glxgears is working fine, but with proprietary nvidia drivers it isn't:

$ glxgears
Error: couldn't get an RGB, Double-buffered visual

NVIDIA X Server Settings doesn't have any settings:

I've tried to install nvidia-375 and nvidia-381 via Driver Manager and manually via apt-get. The drivers are installed without errors, but they don't work.

Nvidia Prime has two equal options to switch to:

$ sudo prime-select nvidia
Info: the current GL alternatives in use are: ['nvidia-381-prime', 'nvidia-381-prime']
Info: the current EGL alternatives in use are: ['nvidia-381-prime', 'nvidia-381-prime']

Driver Manager:

And lspci:

$ lspci -k | grep -EA2 'VGA|3D'
00:02.0 VGA compatible controller: Intel Corporation Device 5916 (rev 02)
    Subsystem: Lenovo Device 505c
    Kernel driver in use: i915
--
01:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 940MX] (rev a2)
    Subsystem: Lenovo GM108M [GeForce 940MX]
    Kernel driver in use: nvidia

Here are the errors from Xorg.0.log:

[    13.919] (EE) [drm] Failed to open DRM device for (null): -22
[    13.948] (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)

I am running 16.04.1, and I purchased a (Samsung LED monitor 18.5 LS19F350HNWXXL) and connected it to my (HCL ME 9525) laptop. I replaced the original screen of my laptop with that Samsung LED monitor. Everything was working fine in the beginning, and it was working on its optimal resolution (i.e 1366*768), but now it has been three days that my screen is not detected and not working in its optimal display.

It only works in 1024*768 resolution, which is not comfortable or compatible for my work. I talked to Samsung customer support and they told me that I have to upgrade my graphic driver software.

I have installed both Ubuntu and Windows on my laptop and when I updated the graphics driver in Windows it worked well, but when I tried to update the graphics driver in Ubuntu it said I already have most up-to-date graphics driver installed:

$ sudo apt-get install xserver-xorg-video-intel
[sudo] password for anurag:
Reading package lists...Done
Building dependency tree
Reading state information...Done
xserver-xorg-video-intel is already the newest version (2:2.99.917+git20160325-1ubuntu1.2).
0 upgraded, 0 newly installed, 0 to remove and 15 not upgraded.

What I have tried: I have gone through so many answers mostly on askubuntu.com and many other websites, but could not find any genuine answer that could work for me. I have also installed Intel graphic driver updater for 16.04 but that also did not work. I have been trying to solve this problem from two days but still did not find out any solution that's why I had to ask this question on this forum.

Results of lspci (to show GPU model):

Results of lspci |grep VGA:

When i tried to install npm install -g react-native-cli then i faced an error like below :

npm WARN engine react-native-cli@1.0.0: wanted: {"node":">=4"} (current: {"node":"0.10.25","npm":"1.4.21"})
npm ERR! tar.unpack untar error /home/putuguna/.npm/react-native-cli/1.0.0/package.tgz
npm ERR! Error: EACCES, mkdir '/usr/local/lib/node_modules'
npm ERR!  { [Error: EACCES, mkdir '/usr/local/lib/node_modules']
npm ERR!   errno: 3,
npm ERR!   code: 'EACCES',
npm ERR!   path: '/usr/local/lib/node_modules',
npm ERR!   fstream_type: 'Directory',
npm ERR!   fstream_path: '/usr/local/lib/node_modules/react-native-cli',
npm ERR!   fstream_class: 'DirWriter',
npm ERR!   fstream_stack: 
npm ERR!    [ '/usr/lib/nodejs/fstream/lib/writer.js:171:23',
npm ERR!      '/usr/lib/nodejs/mkdirp/index.js:46:53',
npm ERR!      'Object.oncomplete (fs.js:107:15)' ] }
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.

npm ERR! System Linux 4.2.0-16-generic
npm ERR! command "/usr/bin/nodejs" "/usr/bin/npm" "install" "-g" "react-native-cli"
npm ERR! cwd /home/putuguna
npm ERR! node -v v0.10.25
npm ERR! npm -v 1.4.21
npm ERR! path /usr/local/lib/node_modules
npm ERR! fstream_path /usr/local/lib/node_modules/react-native-cli
npm ERR! fstream_type Directory
npm ERR! fstream_class DirWriter
npm ERR! code EACCES
npm ERR! errno 3
npm ERR! stack Error: EACCES, mkdir '/usr/local/lib/node_modules'
npm ERR! fstream_stack /usr/lib/nodejs/fstream/lib/writer.js:171:23
npm ERR! fstream_stack /usr/lib/nodejs/mkdirp/index.js:46:53
npm ERR! fstream_stack Object.oncomplete (fs.js:107:15)
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /home/putuguna/npm-debug.log
npm ERR! not ok code 0

Could you help me for solve my problem

Update :

One thing that i know, i should update my node js version. I have done, by this way :

curl -sL https://deb.nodesource.com/setup_4.x | sudo -E bash -
sudo apt-get install -y nodejs

But the error above appears again. please help

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

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 have white or black horizontal striped lines on my windows.

lspci :

root@ubuntu15:~# lspci -k | grep -EA2 'VGA|3D'
00:02.0 VGA compatible controller: Intel Corporation 82Q35 Express Integrated Graphics Controller (rev 02)
    Subsystem: Elitegroup Computer Systems Device 2636

How to fix it?

Visual artifacts 1 (horizontal lines):

Visual artifacts 2:

I'm using an ODROID C1+ and need to connect to a wireless network. I have an open network I want to connect to, but every time I boot up, I need to manually reconnect.

Where do the known networks get recorded, and how do I edit my config to automatically reconnect to the networks I've previously used?

I don't want to restart the network service every time I boot. Updating my kernel is not an option right now. How can I solve this issue of mine?

I am using Ubuntu 14.04. And I have done the following to disable ipv6.

I have open /etc/sysctl.conf using gedit and paste the following lines at the end of sysctl.conf.

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1 

But when I check it using following command,

$ cat /proc/sys/net/ipv6/conf/all/disable_ipv6

I am getting result as '0'( i.e still Enabled). Please help me to disable ipv6, so that I can use hadoop.

I followed instructions from this link.

My system is auto-mounting as read only and I have no idea why.

Output of fstab:

cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    nodev,noexec,nosuid 0       0
# / was on /dev/sda1 during installation
UUID=28db2489-f60e-456c-9efd-7a961f3e970a /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
UUID=106e4470-d734-4cec-98a6-c7859aaedf18 none            swap    sw              0       0
/dev/fd0        /media/floppy0  auto    rw,user,noauto,exec,utf8 0       0

Output of mount:

/dev/sda1 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)

I have searched all night including: Ubuntu 12.04 SSD root frequent random read only file system

I have no idea why this is going on. I did run fsck at boot and it didn't find errors.

The disk is fine (500GB, user 38GB)

I am trying to install opera browser from the terminal. I downloaded the 'debian' installer because it didn't show up in software center.

It completely destroyed my software center - it is frozen and I have no idea how to fix (I have a different thread for that though).

Can I use this thing called synaptic package manager to install Opera? or am I stuck with Firefox?

How do I install Opera Browser?

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.

I am runnning Ubuntu Server on my laptop. There is really no reason for the screen to be on. I have been trying to use this command to turn the screen off:

sleep 1 && xset dpms force off

The problem is I get the following error

unable to open display "".

Any idea what is going on / what is wrong? Any other suggestions for how to do this?