I'm on Ubuntu 25.10 with default everything. Until I tried xfce (briefly) then switched back.

Since then I can't run Inkscape. When I run it from the terminal I get

$ inkscape

(inkscape:399944): Gdk-WARNING **: 16:25:22.955: Failed to load cursor theme Yaru

(inkscape:399944): Gdk-WARNING **: 16:25:23.011: Failed to load cursor theme Yaru
**
Gdk:ERROR:../../../../../gdk/wayland/gdkdisplay-wayland.c:1141:_gdk_wayland_display_get_scaled_cursor_theme: assertion failed: (display_wayland->cursor_theme_name)
Bail out! Gdk:ERROR:../../../../../gdk/wayland/gdkdisplay-wayland.c:1141:_gdk_wayland_display_get_scaled_cursor_theme: assertion failed: (display_wayland->cursor_theme_name)

Emergency save activated!
Emergency save completed. Inkscape will close now.
If you can reproduce this crash, please file a bug at https://inkscape.org/report
with a detailed description of the steps leading to the crash, so we can fix it.
**
Gdk:ERROR:../../../../../gdk/wayland/gdkdisplay-wayland.c:1141:_gdk_wayland_display_get_scaled_cursor_theme: assertion failed: (display_wayland->cursor_theme_name)
Bail out! Gdk:ERROR:../../../../../gdk/wayland/gdkdisplay-wayland.c:1141:_gdk_wayland_display_get_scaled_cursor_theme: assertion failed: (display_wayland->cursor_theme_name)
Aborted (core dumped)

I think xfce might have reset the cursor theme, or I might even have done it myself, I don't recall.

But using Tweaks I've set the cursor theme to Yaru.

That theme isn't listed when I run

$ sudo update-alternatives --config x-cursor-theme
There are 7 choices for the alternative x-cursor-theme (providing /usr/share/icons/default/index.theme).

  Selection    Path                                     Priority   Status
------------------------------------------------------------
* 0            /usr/share/icons/Adwaita/cursor.theme     90        auto mode
  1            /etc/X11/cursors/core.theme               30        manual mode
  2            /etc/X11/cursors/handhelds.theme          20        manual mode
  3            /etc/X11/cursors/redglass.theme           20        manual mode
  4            /etc/X11/cursors/whiteglass.theme         20        manual mode
  5            /usr/share/icons/Adwaita/cursor.theme     90        manual mode
  6            /usr/share/icons/DMZ-Black/cursor.theme   30        manual mode
  7            /usr/share/icons/DMZ-White/cursor.theme   50        manual mode

But /usr/share/icons/Yaru/cursor.theme does exist.

I have also tried running

$ dconf reset /org/gnome/desktop/interface/cursor-theme

but no luck.

Following this question I checked and these files exist:

/usr/share/icons/Yaru/cursors/default
/usr/share/icons/Yaru/cursors/left_ptr

Any ideas what's wrong, and how I can get Inkscape running again?

I have a Lenovo ThinkPad P14s with an NVIDIA T550 GPU, and after a few minutes or even seconds after starting Ubuntu, the system freezes. Sometimes I can switch to text mode with Ctrl + Alt + F3, but I haven’t been able to find what is causing the issue. I have tried isolating the graphics cards and testing different configurations, but the problem continues. This usually happens after restarting the laptop. If I turn on the computer after not using it for a long time, everything works fine. However, after running sudo reboot -i, Ubuntu freezes again. Could this be related to temperature readings or thermal issues after the system starts?

After using for a period, Chrome sometimes becomes very slow and eventually freezes. Sometimes I can restart Chrome, other times I have to reboot my laptop. System Monitor shows multiple errors even before slowdown, mostly of the form '/opt/google/chrome/chrome -type-renderer --crashpad-handler-pid-4808-enable-crash-reporter-.... followed by another 10 lines of alpha-numeric words and numbers. Any suggestions on how to find out what is causing the problem and possible cure?

Chrome Version 149.0.7827.155 (Official Build) (64-bit) under Ubuntu 24.04.4.LTS

I am having a HP laptop with AMD ryzen 3 3250u processor and I installed ubuntu 26 LTS and I tried to add a hibernation device in the laptop using a swap file but what I am experiencing is that when I run the command sudo systemctl hibernate my screen goes blank for sometime and return back to the lockscreen, sometime it work for the first time and subsequent hibernate fails, I am pasting my configuration files

/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>
# / was on /dev/nvme0n1p8 during curtin installation
/dev/disk/by-uuid/4c859583-daba-499b-9918-8bc642b14b80 / ext4 defaults 0 1
# /boot/efi was on /dev/nvme0n1p1 during curtin installation
/dev/disk/by-uuid/D6BC-8F6E /boot/efi vfat defaults 0 1
/swapfile none swap sw 0 0

/etc/default/grub

# If you change this file or any /etc/default/grub.d/*.cfg file,
# run 'update-grub' afterwards to update /boot/grub/grub.cfg.
# For full documentation of the options in these files, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`( . /etc/os-release && echo ${NAME} )`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=4c859583-daba-499b-9918-8bc642b14b80 resume_offset=169984"
GRUB_CMDLINE_LINUX=""

# If your computer has multiple operating systems installed, then you
# probably want to run os-prober. However, if your computer is a host
# for guest OSes installed via LVM or raw disk devices, running
# os-prober can cause damage to those guest OSes as it mounts
# filesystems to look for things.
#GRUB_DISABLE_OS_PROBER=false

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE/GOP/UGA
# you can see them in real GRUB with the command `videoinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

findmnt -no UUID -T /swapfile
4c859583-daba-499b-9918-8bc642b14b80

sudo filefrag -v /swapfile | awk '$1=="0:" {print substr($4,1,length($4)-2)}'
169984

I'm trying to install the Fender Studio Pro 8.1 beta for Linux.

The problem is that is either comes as a flatpack (which I understand can't access the host system, which means all my third-party VST's can't be used), or as a .deb package.

I try to install the .deb package, but it have dependencies on old FFMPEG libraries, like for example libavcodec60, which aren't available in 26.04.

I've found a few .deb files for the dependencies, but they in turn have other old dependencies, leading to a never ending rabbit hole and a possibly broken system.

Is there a way to either install the old dependencies (without breaking my system), or to bypass their need in a way that won't nag me about "broken" packages and the use of apt --fix-broken install?

The list of unmet dependencies:

Unsatisfied dependencies:
 studiopro8 : Depends: libavcodec60 (>= 7:6.0) but it is not installable
              Depends: libavformat60 (>= 7:6.0) but it is not installable
              Depends: libavutil58 (>= 7:6.0) but it is not installable
              Depends: libsdbus-c++1 (>= 1.4.0) but it is not installable
              Depends: libswscale7 (>= 7:6.0) but it is not installable

Have searched and found conflicting info..

Can Gnome on 26.04 run as an X11 session?

Or do I have to install/run XFCE or similar?

Mainly need this to run NoMachine on a headless server.

Thanks.

This subject has been around for a while but I think it needs an update. I have experienced the issue several times before and I have always been able to fix it by reinstalling the driver. However with a recent system update, no such luck.

My system is Ubuntu 22.04 with Kernel: 6.8.0-124-generic x86_64 bits, and a dual head graphics card NVIDIA GeForce GT 710. The correct driver is nvidia-driver-470.

The update installed the nvidia driver 535 which doesn't work. Attempts to install the 470 driver using apt install ignores the 470 driver and installs the 535 instead. I understand that this is because the 470 driver is no longer supported even though it is a common piece of hardware and is still available.

I was fortunate to discover after much gnashing of teeth that I could force the system to use a generic driver (Nouveau) by:

sudo apt purge "*nvidia*"

sudo apt autoremove --purge

sudo reboot

Then by going to Additional Drivers I found I could now select nvidia-driver-470 and install. Now things work again!

So my question is what exactly is going on? Also is it going to be safe to install future updates without breaking my system?

I am recently Installed ubuntu os. In that I can't see the wifi symbol i tried all method but result is negative. So i researched many articles shows Your wifi driver may problem change inter wifi thats like

My wifi driver ls MediaTek9702 does this not support wifi in the ubuntu. And also in additional drivers it does not show anything if loads like half hour still no output.

I was using Kubuntu butthe new LTS slowed my computer down so I'm back to an older Ubuntu LTS. I'd like to see the seconds but the same way I was able to do it in Kubuntu, by hovering over the clock, not showing them all the time on the regular clock (because that's supposed to use more computing power) so, does anyone know how to do it? Or at least showing them in the dropdown calendar instead of the top bar?

I have a ThinkPad with Linux professionally installed. I use Timeshift and need to format external drive to ext4. I need Voice funcionality because it is difficult for me to type. I need to use Proton Mail. I have Proton Business Suite.

I'm troubleshooting a MAAS 3.7.2 deployment on a physical server with a Broadcom/LSI MegaRAID 12G SAS controller (SAS3908 family).

The controller is configured in JBOD mode and the OS appears to see storage devices. However, commissioning fails during the smartctl-validate step with:

Unable to run 'smartctl-validate': 'MAAS did not detect any storage devices during commissioning!'

Given parameters:
{'storage': {'type': 'storage', 'value': 'all', 'argument_format': '{path}'}}

Discovered storage devices:
[
 {'name': 'sda', 'model': 'SAS_3908', 'serial': '004bdefefc8b4d1b30037c0d24800403', 'maj:min': '8:0', 'model_enc': 'SAS 3908'},
 {'name': 'sdb', 'model': 'SAS_3908', 'serial': '009e90ecc2644d1b30037c0d24800403', 'maj:min': '8:16', 'model_enc': 'SAS 3908'}
]

Discovered interfaces:
{'90:5a:08:0c:3a:21': 'ens7f1np1'}

What confuses me is that the commissioning output clearly shows sda and sdb, yet the script reports that no storage devices were detected.

Additional details:

• MAAS version: 3.7.2

• Physical server (not a VM)

• Controller: Broadcom/LSI MegaRAID SAS3908 family

• Controller configured for JBOD

• MAAS region and rack controllers are functioning otherwise

• PXE boot and commissioning complete until the storage validation stage

My questions are:

1. How does smartctl-validate determine whether a disk is a valid storage device?

2. Does MAAS have known issues with SAS3908/MegaRAID controllers in JBOD mode?

3. Is MAAS expecting direct-attached disks while the controller is exposing virtual devices named SAS_3908?

4. Has anyone successfully commissioned SAS3908-based systems in MAAS, and if so, were any controller firmware or MAAS configuration changes required?

5. I'm also having this problem for VM's that have ssd emulated and start with sda / sdb etc, if they start with vda / vdb it works fine and detects the disks.

Additional info:

  ---
  lsblk -d -o NAME,MODEL,VENDOR,SERIAL,SIZE

  NAME  MODEL    VENDOR   SERIAL                             SIZE
  sda   SAS 3908 BROADCOM 0054f0e141604e1b3003351b24800403   1.7T
  sdb   SAS 3908 BROADCOM 00bb4b157ddc4d1b3003351b24800403 223.1G

  ---
  lspci -nn | grep -Ei 'raid|sas|storage'
  
  2a:00.0 RAID bus controller [0104]: Broadcom / LSI MegaRAID 12GSAS/PCIe Secure SAS39xx [1000:10e2]

  ---
  smartctl --scan-open (with sudo)

  /dev/sda -d scsi # /dev/sda, SCSI device
  /dev/sdb -d scsi # /dev/sdb, SCSI device
  /dev/bus/0 -d sat+megaraid,0 # /dev/bus/0 [megaraid_disk_00] [SAT], ATA device
  /dev/bus/0 -d sat+megaraid,1 # /dev/bus/0 [megaraid_disk_01] [SAT], ATA device
  /dev/bus/0 -d sat+megaraid,4 # /dev/bus/0 [megaraid_disk_04] [SAT], ATA device
  /dev/bus/0 -d sat+megaraid,5 # /dev/bus/0 [megaraid_disk_05] [SAT], ATA device

  ---
  RAID Controller Disks (via megaraid)
  
  ┌────────────┬────────────────────────────┬────────────────┬──────────┬─────────┐
  │   Drive    │           Model            │     Serial     │ Capacity │  SMART  │
  ├────────────┼────────────────────────────┼────────────────┼──────────┼─────────┤
  │ megaraid,0 │ SAMSUNG MZ7L3240HCHQ-00A07 │ S663NL0Y306533 │ 240 GB   │ Enabled │
  ├────────────┼────────────────────────────┼────────────────┼──────────┼─────────┤
  │ megaraid,1 │ SAMSUNG MZ7L3240HCHQ-00A07 │ S663NL0Y306523 │ 240 GB   │ Enabled │
  ├────────────┼────────────────────────────┼────────────────┼──────────┼─────────┤
  │ megaraid,4 │ SAMSUNG MZ7L31T9HBLT-00A07 │ S6ESNN0X615224 │ 1.92 TB  │ Enabled │
  ├────────────┼────────────────────────────┼────────────────┼──────────┼─────────┤
  │ megaraid,5 │ SAMSUNG MZ7L31T9HBLT-00A07 │ S6ESNN0X615231 │ 1.92 TB  │ Enabled │
  └────────────┴────────────────────────────┴────────────────┴──────────┴─────────┘

  ---
  Direct SCSI Devices (RAID controller itself)

  ┌────────┬───────────────────┬──────────────────────────────────┬──────────┬─────────────────┐
  │ Device │       Model       │              Serial              │ Capacity │      Type       │
  ├────────┼───────────────────┼──────────────────────────────────┼──────────┼─────────────────┤
  │ sda    │ BROADCOM SAS 3908 │ 0054f0e141604e1b3003351b24800403 │ 1.91 TB  │ RAID Controller │
  ├────────┼───────────────────┼──────────────────────────────────┼──────────┼─────────────────┤
  │ sdb    │ BROADCOM SAS 3908 │ 00bb4b157ddc4d1b3003351b24800403 │ 239 GB   │ RAID Controller │
  └────────┴───────────────────┴──────────────────────────────────┴──────────┴─────────────────┘

  ---

  storcli /c0 show
  
  CLI Version = 007.3703.0000.0000 Jan 16, 2026
  Operating system = Linux 6.8.12-9-pve
  Controller = 0
  Status = Failure
  Description = Controller 0 not found
  
  ---
  storcli show all

  CLI Version = 007.3703.0000.0000 Jan 16, 2026
  Operating system = Linux 6.8.12-9-pve
  Status Code = 0
  Status = Success
  Description = None
  
  Number of Controllers = 0
  Host Name = redacted
  Operating System  = Linux 6.8.12-9-pve

  ---

So far, every attempt to use the new NTFS driver results in my NTFS partitions being mounted with ntfs-3g. The new module is definitely there on my system:

modinfo ntfs

filename:       /lib/modules/7.1.1-070101-generic/kernel/fs/ntfs/ntfs.ko.zst  
license:        GPL  
description:    NTFS read-write filesystem driver  
author:         Namjae Jeon \<linkinjeon@kernel.org\>  
author:         Anton Altaparmakov \<anton@tuxera.com\>  
alias:          fs-ntfs  
srcversion:     091423F884CAF8508734076  
depends:          
intree:         Y  
name:           ntfs  
retpoline:      Y  
vermagic:       7.1.1-070101-generic SMP preempt mod_unload modversions   
sig_id:         PKCS#7  
signer:         Build time autogenerated kernel key  
sig_key:        1F:E1:EC:9E:F2:FC:21:B7:3E:FE:61:97:D8:19:B9:9F:82:7B:A2:97  
sig_hashalgo:   sha512

But this isn't working:

modprobe ntfs  
  
modprobe -R ntfs  
ntfs

mount -t ntfs /dev/sda1 /mnt/temp

mount -l | grep /dev/sda1  
/dev/sda1 on /mnt/temp type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096) \[Media\]

I'm currently trying to install a Nvidia driver 390 on Ubuntu 24.04.4, but I have learned that it's not longer supported. I learned about the workaround with the kelebek333/nvidia-legacy repository, but apparently it's very buggy and sometimes will lead to a black screen and you have to purge the driver or something like that without entering the desktop.

I am not very experienced and I do not have enough confidence to do that. Is my only choice rolling back the Nvidia driver version or is there another workaround? My GPU is a GT540m and my kernel version is 6.17.

I am trying to install Lubuntu 26.04 on an old computer, dual boot alongside Windows 10 on the same GPT SSD, however after a successful installation the computer boots into Windows. Grub does not appear, and I have no option to boot into Linux.

The motherboard is a Hybrid EFI Gigabyte 78LMT. Apparently it can make dual booting very tricky, but I lack the technical knowledge to understand details like these.

Specs:

• Motherboard: Gigabyte GA-78LMT-USB3 Rev. 5.0

• CPU: AMD FX-8350 (8-core, 125W, AM3+)

• RAM: 8GB DDR3 1600 MHz (2×4 GB)

• GPU: AMD Radeon HD 7750 1GB GDDR5

I have tried this solution but boot-repair gives the following error:"The current session is in Bios-compatibility mode". I cannot setup the BIOS to boot USB in EFI mode, the option exists for CD/DVD only, as explained here:

Although Gigabyte's Hybrid EFI contains a full-fledged EFI implementation from an OS's perspective, the firmware setup utility provides almost no options to help you use this functionality. Specifically, only one firmware option, entitled "EFI CD/DVD Boot Option," on the "Advanced BIOS Features" menu, relates to this feature.

In another question, someone tried to install from CD, apparently without success. I have no CD/DVD drive to test this option.

I cannot find any UEFI settings to select Ubuntu as the default operating system to boot either; thus, it seems this solution will not work: no UEFI settings.

I can choose from which disk to boot; Windows and Ubuntu are on the same SDD. I have also an old HDD I use for backup attached to the motherboard; perhaps installing GRUB on it could be a solution?

I got a second 1TB SSD installed a while back because the standard 256GB SSD was getting filled up fast.

Now the OEM storage has no space left to complete the next required Ubuntu 26.04 update. It was then I realized that the second internal storage device has not been correctly mounted (if at all) as it is not visible, except that the BIOS can see it.

Before I got around to really looking into the issue, a bigger problem has occurred, that is when booting up the laptop, it won't finalize and go to the start/login page, but instead, just shows a blank screen (not totally pitch black though).

I've found that after and during a reboot, while holding down Ctrl+Windows+F3, a command terminal is brought up in order to log in, and thereafter for any further commands to be entered as needed.

From this point forward, is it possible to get that second internal storage device seen and usable via that now present ordinary looking terminal (with a blank screen background), bearing in mind that the information about the original main HD says it's 100% full.

Recently had a friend help me switch from Windows 10 to Ubuntu 24.04.4 LTS.

Found myself struggling while filling out PDFs of scanned paper documents. On Windows, I used the free version of Adobe Acrobat. It has the option to format inserted text letter by letter into evenly spaced boxes, which is something a lot of these documents call for.

I can obviously kind of McGiver a similar result by inserting several spaces after each letter, incredibly clunky though.

Can someone recommend a PDF viewer and editor for Ubuntu that allows inserting text in this format?

I installed Ubuntu 26.04 recently on a new device and enabled full disk encryption.

When I enter the password, sometimes the system does not recognize it and prompts me to enter it again. When I do that, it gets stuck on the loading screen and never boots. Pressing Esc showed me some error messages about the crypt library.

How can I solve this problem? I am forced to do a force restart at least once a day because of this. The keyboard layout is shown to be de, so I don't think it is related to a layout mismatch.

Logs below:

Executing journalctl:

If I run reboot command the system logs in without peoblems. So i happens roughly 50% when booting from an off state. It does not happen at all on reboot.

Since I did not find any solution, I installed Ubuntu again and removed the encryption, however this revealed that the problem is as follows:

When I type the password, some characters require Shift + number, like $ = Shift + 4. But when I press Shift and anything else nothing is entered. This problem disappears if I press Fn + Esc (to toggle FnLock).

This does not happen all the time. It happens as follows:

• When I take my laptop to the University (fully charged), I open it, and no problem appears. The laptop usually drops to ~40% before I close it and return home.

• When I open the laptop at home (connected to the charger), the problem appears (always, even if I charge the laptop first, then open it).

Any help knowing why this is happening?

After upgrading from Ubuntu 25. to Ubuntu 26.04 LTS, randomly when starting Thunderbird the screen freezes and says "kernel panic fatal exception in interrupt" After restart it continues to work, but randomly crashes again?

Today I upgraded to Kubuntu 26.04.

Moving my mouse coursor onto my second monitor using Wayland (Plasma) will permanently freeze the video output. This also happens in the login screen. I am able to circumvent it by using awesome-wm, but strongly prefer plasma. And it only occures when moving the mouse coursor there, having applications open and using keyboard shortcuts does not trigger it. Disabling the internal screen and just using the external one also does not help.

System is still running, as I am able to ssh in and reboot it.

I am on an optimus notebook with a 1060 6GB with kernel 7.0.0-14-generic, the following appears in the syslog:

2026-04-28T20:44:45.473990+02:00 notebook kernel: BUG: kernel NULL pointer dereference, address: 0000000000000028
2026-04-28T20:44:45.474007+02:00 notebook kernel: #PF: supervisor read access in kernel mode
2026-04-28T20:44:45.474009+02:00 notebook kernel: #PF: error_code(0x0000) - not-present page
2026-04-28T20:44:45.474009+02:00 notebook kernel: PGD 800000013626e067 P4D 800000013626e067 PUD 0 
2026-04-28T20:44:45.474018+02:00 notebook kernel: Oops: Oops: 0000 [#1] SMP PTI
2026-04-28T20:44:45.474018+02:00 notebook kernel: CPU: 5 UID: 1000 PID: 2469 Comm: kwin_wayland Tainted: P           OE       7.0.0-14-generic #14-Ubuntu PREEMPT(lazy) 
2026-04-28T20:44:45.474019+02:00 notebook kernel: Tainted: [P]=PROPRIETARY_MODULE, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
2026-04-28T20:44:45.474019+02:00 notebook kernel: Hardware name: Notebook                         N85_87HP6/N85_87HP6, BIOS 1.05.08RTM 08/08/2017
2026-04-28T20:44:45.474020+02:00 notebook kernel: RIP: 0010:_nv000582kms+0x4/0x10 [nvidia_modeset]
2026-04-28T20:44:45.474020+02:00 notebook kernel: Code: 87 50 01 00 00 20 20 2d c8 48 c7 87 38 01 00 00 70 1e 2d c8 48 c7 87 40 01 00 00 40 22 2d c8 c3 66 0f 1f 44 00 00 f3 0f 1e fa <0f> b6 47 28 c3 0f 1f 80 00 00 00 00 89 c9 48 8d 04 49 48 c1 e0 04
2026-04-28T20:44:45.474021+02:00 notebook kernel: RSP: 0018:ffffd54649d13af0 EFLAGS: 00010293
2026-04-28T20:44:45.474021+02:00 notebook kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffc82d2660
2026-04-28T20:44:45.474022+02:00 notebook kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
2026-04-28T20:44:45.474022+02:00 notebook kernel: RBP: ffffd54649d13bb0 R08: 0000000000000000 R09: 0000000000000000
2026-04-28T20:44:45.474022+02:00 notebook kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffff8e0a87433500
2026-04-28T20:44:45.474023+02:00 notebook kernel: R13: ffffd54649d13b38 R14: ffff8e0a87433508 R15: 0000000000000000
2026-04-28T20:44:45.474023+02:00 notebook kernel: FS:  000075158ac2de80(0000) GS:ffff8e0e6a080000(0000) knlGS:0000000000000000
2026-04-28T20:44:45.474024+02:00 notebook kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
2026-04-28T20:44:45.474024+02:00 notebook kernel: CR2: 0000000000000028 CR3: 000000017739e005 CR4: 00000000003706f0
2026-04-28T20:44:45.474024+02:00 notebook kernel: Call Trace:
2026-04-28T20:44:45.474025+02:00 notebook kernel:  <TASK>
2026-04-28T20:44:45.474025+02:00 notebook kernel:  ? nv_drm_framebuffer_create+0x2fa/0x760 [nvidia_drm]
2026-04-28T20:44:45.474026+02:00 notebook kernel:  drm_internal_framebuffer_create+0x100/0x210
2026-04-28T20:44:45.474026+02:00 notebook kernel:  drm_mode_addfb2+0x51/0x120
2026-04-28T20:44:45.474027+02:00 notebook kernel:  ? __pfx_drm_prime_fd_to_handle_ioctl+0x10/0x10
2026-04-28T20:44:45.474027+02:00 notebook kernel:  ? __pfx_drm_mode_addfb2_ioctl+0x10/0x10
2026-04-28T20:44:45.474027+02:00 notebook kernel:  drm_mode_addfb2_ioctl+0xe/0x20
2026-04-28T20:44:45.474028+02:00 notebook kernel:  drm_ioctl_kernel+0xb5/0x110
2026-04-28T20:44:45.474028+02:00 notebook kernel:  drm_ioctl+0x309/0x5f0
2026-04-28T20:44:45.474028+02:00 notebook kernel:  ? __pfx_drm_mode_addfb2_ioctl+0x10/0x10
2026-04-28T20:44:45.474029+02:00 notebook kernel:  nv_drm_ioctl+0x38/0x3f0 [nvidia_drm]
2026-04-28T20:44:45.474029+02:00 notebook kernel:  ? __x64_sys_ioctl+0xbd/0x100
2026-04-28T20:44:45.474030+02:00 notebook kernel:  __x64_sys_ioctl+0xa3/0x100
2026-04-28T20:44:45.474030+02:00 notebook kernel:  ? putname+0x41/0x90
2026-04-28T20:44:45.474030+02:00 notebook kernel:  x64_sys_call+0x103b/0x2390
2026-04-28T20:44:45.474031+02:00 notebook kernel:  do_syscall_64+0x115/0x5a0
2026-04-28T20:44:45.474043+02:00 notebook kernel:  ? __x64_sys_openat+0x5f/0xa0
2026-04-28T20:44:45.474044+02:00 notebook kernel:  ? arch_exit_to_user_mode_prepare.isra.0+0xd/0xe0
2026-04-28T20:44:45.474044+02:00 notebook kernel:  ? do_syscall_64+0x150/0x5a0
2026-04-28T20:44:45.474045+02:00 notebook kernel:  ? sysvec_apic_timer_interrupt+0x54/0xd0
2026-04-28T20:44:45.474045+02:00 notebook kernel:  entry_SYSCALL_64_after_hwframe+0x76/0x7e
2026-04-28T20:44:45.474046+02:00 notebook kernel: RIP: 0033:0x751591732cbd
2026-04-28T20:44:45.474046+02:00 notebook kernel: Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
2026-04-28T20:44:45.474046+02:00 notebook kernel: RSP: 002b:00007ffe69e33c10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
2026-04-28T20:44:45.474047+02:00 notebook kernel: RAX: ffffffffffffffda RBX: 00007ffe69e33df4 RCX: 0000751591732cbd
2026-04-28T20:44:45.474048+02:00 notebook kernel: RDX: 00007ffe69e33ca0 RSI: 00000000c06864b8 RDI: 0000000000000101
2026-04-28T20:44:45.474049+02:00 notebook kernel: RBP: 00007ffe69e33c60 R08: 00007ffe69e33e50 R09: 00006223a6af1ca8
2026-04-28T20:44:45.474050+02:00 notebook kernel: R10: 0000751594f2769b R11: 0000000000000246 R12: 00007ffe69e33ca0
2026-04-28T20:44:45.474051+02:00 notebook kernel: R13: 00000000c06864b8 R14: 0000000000000101 R15: 00006223a6af1c70
2026-04-28T20:44:45.474052+02:00 notebook kernel:  </TASK>
2026-04-28T20:44:45.474066+02:00 notebook kernel: Modules linked in: ccm udp_diag ib_core tcp_diag inet_diag xt_conntrack xt_MASQUERADE bridge stp llc xfrm_user xfrm_algo xt_set ip_set nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_addrtype nft_compat x_tables nf_tables vxlan ip6_udp_tunnel udp_tunnel rfcomm snd_seq_dummy snd_hrtimer overlay vboxnetadp(OE) qrtr vboxnetflt(OE) cmac algif_hash algif_skcipher af_alg bnep vboxdrv(OE) ccp binfmt_misc nvidia_uvm(PO) intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common snd_hda_codec_intelhdmi nvidia_drm(PO) nvidia_modeset(PO) intel_tcc_cooling snd_hda_codec_alc269 x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek_lib snd_hda_scodec_component snd_hda_codec_nvhdmi snd_hda_codec_generic snd_hda_codec_hdmi snd_soc_avs kvm_intel snd_soc_hda_codec iwlmvm snd_hda_intel snd_hda_ext_core snd_hda_codec snd_hda_core snd_intel_dspcfg snd_intel_sdw_acpi snd_hwdep snd_seq_midi kvm mac80211 snd_seq_midi_event snd_soc_core uvcvideo videobuf2_vmalloc uvc irqbypass
2026-04-28T20:44:45.474067+02:00 notebook kernel:  snd_compress ac97_bus libarc4 rapl videobuf2_memops ee1004 btusb btmtk nvidia(PO) mei_hdcp mei_pxp intel_cstate snd_rawmidi snd_pcm_dmaengine mxm_wmi iwlwifi videobuf2_v4l2 videobuf2_common i2c_i801 snd_seq i2c_smbus btrtl videodev snd_pcm btbcm btintel snd_seq_device i915 i2c_mux cfg80211 mc bluetooth drm_buddy nls_iso8859_1 snd_timer drm_display_helper snd cec mei_me soundcore rc_core drm_ttm_helper ttm mei i2c_algo_bit intel_pmc_core pmt_telemetry pmt_discovery pmt_class intel_pmc_ssram_telemetry intel_vsec acpi_pad input_leds joydev mac_hid sch_fq_codel parport_pc lp ppdev coretemp parport msr nvme_fabrics efi_pstore nfnetlink dmi_sysfs autofs4 wacom hid_generic usbhid hid psmouse nvme rtsx_pci_sdmmc serio_raw ghash_clmulni_intel r8169 nvme_core nvme_keyring nvme_auth hkdf realtek rtsx_pci video ahci wmi libahci aesni_intel
2026-04-28T20:44:45.474068+02:00 notebook kernel: CR2: 0000000000000028
2026-04-28T20:44:45.474068+02:00 notebook kernel: ---[ end trace 0000000000000000 ]---
2026-04-28T20:44:45.474069+02:00 notebook kernel: RIP: 0010:_nv000582kms+0x4/0x10 [nvidia_modeset]
2026-04-28T20:44:45.474070+02:00 notebook kernel: Code: 87 50 01 00 00 20 20 2d c8 48 c7 87 38 01 00 00 70 1e 2d c8 48 c7 87 40 01 00 00 40 22 2d c8 c3 66 0f 1f 44 00 00 f3 0f 1e fa <0f> b6 47 28 c3 0f 1f 80 00 00 00 00 89 c9 48 8d 04 49 48 c1 e0 04
2026-04-28T20:44:45.474071+02:00 notebook kernel: RSP: 0018:ffffd54649d13af0 EFLAGS: 00010293
2026-04-28T20:44:45.474071+02:00 notebook kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffc82d2660
2026-04-28T20:44:45.474098+02:00 notebook kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
2026-04-28T20:44:45.474099+02:00 notebook kernel: RBP: ffffd54649d13bb0 R08: 0000000000000000 R09: 0000000000000000
2026-04-28T20:44:45.474100+02:00 notebook kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffff8e0a87433500
2026-04-28T20:44:45.474101+02:00 notebook kernel: R13: ffffd54649d13b38 R14: ffff8e0a87433508 R15: 0000000000000000
2026-04-28T20:44:45.474102+02:00 notebook kernel: FS:  000075158ac2de80(0000) GS:ffff8e0e6a080000(0000) knlGS:0000000000000000
2026-04-28T20:44:45.474103+02:00 notebook kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
2026-04-28T20:44:45.474104+02:00 notebook kernel: CR2: 0000000000000028 CR3: 000000017739e005 CR4: 00000000003706f0
2026-04-28T20:44:45.474105+02:00 notebook kernel: note: kwin_wayland[2469] exited with irqs disabled
2026-04-28T20:44:45.482324+02:00 notebook kwin_wayland_wrapper[2469]: kwin_scene_opengl: Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT"

Ouput of swapon

NAME      TYPE      SIZE USED PRIO
/dev/sda1 partition 7,5G   0B   -1

Output of dpkg -l *nvidia* | grep ii

ii  libnvidia-cfg1-580:amd64                       580.142-0ubuntu3              amd64        NVIDIA binary OpenGL/GLX configuration library
ii  libnvidia-common-580:i386                      580.142-0ubuntu3              i386         Shared files used by the NVIDIA libraries
ii  libnvidia-compute-580:amd64                    580.142-0ubuntu3              amd64        NVIDIA libcompute package
ii  libnvidia-compute-580:i386                     580.142-0ubuntu3              i386         NVIDIA libcompute package
ii  libnvidia-decode-580:amd64                     580.142-0ubuntu3              amd64        NVIDIA Video Decoding runtime libraries
ii  libnvidia-decode-580:i386                      580.142-0ubuntu3              i386         NVIDIA Video Decoding runtime libraries
ii  libnvidia-egl-wayland1:amd64                   1:1.1.21-1                    amd64        Wayland EGL External Platform library -- shared library
ii  libnvidia-egl-wayland1:i386                    1:1.1.21-1                    i386         Wayland EGL External Platform library -- shared library
ii  libnvidia-encode-580:amd64                     580.142-0ubuntu3              amd64        NVENC Video Encoding runtime library
ii  libnvidia-encode-580:i386                      580.142-0ubuntu3              i386         NVENC Video Encoding runtime library
ii  libnvidia-extra-580:amd64                      580.142-0ubuntu3              amd64        Extra libraries for the NVIDIA driver
ii  libnvidia-fbc1-580:amd64                       580.142-0ubuntu3              amd64        NVIDIA OpenGL-based Framebuffer Capture runtime library
ii  libnvidia-fbc1-580:i386                        580.142-0ubuntu3              i386         NVIDIA OpenGL-based Framebuffer Capture runtime library
ii  libnvidia-gl-580:amd64                         580.142-0ubuntu3              amd64        NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii  libnvidia-gl-580:i386                          580.142-0ubuntu3              i386         NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii  linux-firmware-nvidia-graphics                 20260319.git217ca6e4-0ubuntu1 all          Firmware for Nvidia graphics
ii  linux-modules-nvidia-580-7.0.0-14-generic      7.0.0-14.14                   amd64        Linux kernel nvidia modules for version 7.0.0-14
ii  linux-modules-nvidia-580-generic               7.0.0-14.14                   amd64        Extra drivers for nvidia-580 for the generic flavour
ii  linux-objects-nvidia-580-7.0.0-14-generic      7.0.0-14.14                   amd64        Linux kernel nvidia modules for version 7.0.0-14 (objects)
ii  linux-signatures-nvidia-7.0.0-14-generic       7.0.0-14.14                   amd64        Linux kernel signatures for nvidia modules for version 7.0.0-14-generic
ii  nvidia-compute-utils-580                       580.142-0ubuntu3              amd64        NVIDIA compute utilities
ii  nvidia-driver-580                              580.142-0ubuntu3              amd64        NVIDIA driver metapackage
ii  nvidia-firmware-580-580.142                    580.142-0ubuntu3              amd64        Firmware files used by the kernel module
ii  nvidia-kernel-common-580                       580.142-0ubuntu3              amd64        Shared files used with the kernel module
ii  nvidia-kernel-source-580                       580.142-0ubuntu3              amd64        NVIDIA kernel source package
ii  nvidia-prime                                   0.8.17.2build1                all          Tools to enable NVIDIA's Prime
ii  nvidia-settings                                510.47.03-0ubuntu7            amd64        Tool for configuring the NVIDIA graphics driver
ii  nvidia-utils-580                               580.142-0ubuntu3              amd64        NVIDIA driver support binaries
ii  xserver-xorg-video-nvidia-580                  580.142-0ubuntu3              amd64        NVIDIA binary Xorg driver

/var/crash/ is empty prime-select is on nvidia. I should not that I can switch to intel, but that also disables the HDMI port, so the problem cannot be replicated then.

Adding KWIN_FORCE_SW_CURSOR=1 to /etc/environment does not help.

For 26.04 I did an almost complete reinstallation of my system, only keeping my home drive but formatting all system drives.

I installed Thunderbird with apt, and it works fine with all my old settings and configurations.

But it doesn't show up in the applications menu... If I press the Windows key on my keyboard, searching for e.g. Vivaldi (my browser of choice) allows me to find and start it just fine, but Thunderbird does not show up. I have to start if from a terminal.

The /usr/share/applications/thunderbird.desktop file is there and seems to be fine.

I've logged out/in and restarted my computer multiple times to no avail.

Was something changed in regards to mail and/or Thunderbird in 26.04? Why can't I search for it?

Addendum: The application doesn't have the Thunderbird icon once I run it. Could possibly be related.

Update 2026-06-21: This now works. I'm not sure what update or other thing I used, but suddenly it works as intended again. Thunderbird is shown as an app in the app menu, and have the correct icon.

As the title says, I just installed 26.04 on my MacBook Pro. WiFi does not work, but it's fixable as shown below:

The question is, why did I have to do so much manual work? This is not user-friendly.

After the fresh install, the WiFi didn't work. Looking at dmesg, I found this:

b43-phy0: Broadcom 4360 WLAN found (core revision 42)
b43-phy0 ERROR: FOUND UNSUPPORTED PHY (Analog 12, Type 11 (AC), Revision 1)
b43 bcma0:1: probe with driver b43 failed with error -95
Broadcom 43xx driver loaded \[ Features: PNL \]

A bit of Googling shows that problems like this have been reported by some users for years.

The ubuntu-drivers devices command suggested in some posts produces no output. (That's a user interface that needs some improvement).

On this MBP, lspci -nn -d 14e4: reports

03:00.0 Network controller \[0280\]: Broadcom Inc. and subsidiaries BCM4360  
802.11ac Dual Band Wireless Network Adapter \[14e4:43a0\] (rev 03)

04:00.0 Multimedia controller \[0480\]: Broadcom Inc. and subsidiaries 720p
FaceTime HD Camera \[14e4:1570\]

Following the suggestions in other posts here I did sudo apt install broadcom-sta-dkms and now sudo apt show broadcom-sta-dkms shows:

Package: broadcom-sta-dkms
Version: 6.30.223.271-29ubuntu1

Now, after rebooting, I found these lines in my dmesg:

wlan0: Broadcom BCM43a0 802.11 Hybrid Wireless Controller 6.30.223.271 (r587334)
wl 0000:03:00.0 wlp3s0: renamed from wlan0

And in lspci -k output I find this:

03:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4360 802.11ac Dual Band Wireless Network Adapter (rev 03)
    Subsystem: Apple Inc. Device 0134
    Kernel driver in use: wl
    Kernel modules: bcma, wl

Now it works, so it's fixable, but it's way more difficult than it ought to be.

Since I'm having audio issues on both my Ubuntu machines, felt like using my improved techniques to figure out more about what's wrong on the one that at least sometimes works.

So, HDMI via internal graphics that sometimes appears as an Output Device in Sound settings, but sometimes doesn't, causing a Dummy Audio issue, and for all times eventually is fixed as long as I keep resetting until a success.

But I'll rather stop having to repeated reset after a required post-update reset.

So, what I know:

~$ lspci | grep -i audio
06:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller

But that doesn't currently appear in alsamixer but it did when I checked during a time it did work.

And aplay -l is empty:

**** List of PLAYBACK Hardware Devices ****

ls /proc/asound gives:

card1 cards devices hwdep modules oss pcm seq timers version WEBCAM

sudo dmesg mentions errors creating the cards:

snd_hda_intel 0000:06:00.1: cannot find the slot for index 1 (range 0-1), error: -16
snd_hda_intel 0000:06:00.1: Error creating card!
snd_hda_intel: probe of 0000:06:00.1 failed with error -16
snd_hda_intel 0000:06:00.6: cannot find the slot for index 1 (range 0-1), error: -16
snd_hda_intel 0000:06:00.6: Error creating card!
snd_hda_intel: probe of 0000:06:00.6 failed with error -16

Packages:

~$ apt list --installed | grep ^alsa

alsa-base/noble,noble,now 1.0.25+dfsg-0ubuntu7 all [installed]
alsa-topology-conf/noble,noble,now 1.2.5.1-2 all [installed,automatic]
alsa-ucm-conf/noble-updates,noble-updates,now 1.2.10-1ubuntu5.8 all [installed,automatic]
alsa-utils/noble,now 1.2.9-1ubuntu5 amd64 [installed]

~$ apt list --installed | grep ^pipe

pipewire-alsa/noble-updates,now 1.0.5-1ubuntu3.2 amd64 [installed,automatic]
pipewire-audio/noble-updates,noble-updates,now 1.0.5-1ubuntu3.2 all [installed,automatic]
pipewire-bin/noble-updates,now 1.0.5-1ubuntu3.2 amd64 [installed,automatic]
pipewire-libcamera/noble-updates,noble-updates,now 1.0.5-1ubuntu3.2 all [installed]
pipewire-pulse/noble-updates,now 1.0.5-1ubuntu3.2 amd64 [installed,automatic]
pipewire/noble-updates,now 1.0.5-1ubuntu3.2 amd64 [installed,automatic]

~$ apt list --installed | grep ^pulse

pulseaudio-utils/noble-updates,now 1:16.1+dfsg1-2ubuntu10.1 amd64 [installed]

Maybe I should remove this?

And last possibly relevant package:

wireplumber/noble-updates,now 0.4.17-1ubuntu4.1 amd64 [installed]

~$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-6.8.0-94-generic root=UUID=da6325a2-7cca-4ecb-aa63-13b1923ce3b8 ro quiet splash vt.handoff=7

Since I started using the timer function in the clock app, the ring sound from when the timer runs out appears randomly, including when a timer is running but has not reached 0, and even with the clock app closed. This stops after a reboot, but I don't know why this happens.

I've read some posts regarding time issues that mentioned dual-boot with Windows, so I'll add that I have Windows 10 in dual boot, if it happens to be related.

Clock app:

I have a headless Ubuntu 20.04 with cups 2.3.1 and cups-browsed 1.27.4. Everything was groovy until I installed an x-server last week to make a package work. This seems to have severly messed with my cups settings because since then there is one (out of three) USB printers that cups doesn't 'see' anymore. I removed the x-server again in the meanwhile and purged both cups and cups-browsed.

lsusb can see the printer. The printer in question is the Brother DCP-L5500DN:

lsusb
Bus 002 Device 002: ID 8087:8000 Intel Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 009: ID 04f9:0399 Brother Industries, Ltd DCP-L5500DN series
Bus 004 Device 006: ID 0a5f:0080 Zebra ZTC GK420d
Bus 004 Device 008: ID 04f9:2028 Brother Industries, Ltd QL-570 P-touch Label Printer
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lpstat does already not recognize it as a USB printer:

lpstat -v
device for Brother_DCP_L5500DN_series_USB_wiyanna_opti: implicitclass://Brother_DCP_L5500DN_series_USB_wiyanna_opti/
device for Brother_QL-570: usb://Brother/QL-570?serial=D6Z656473
device for Brother_QL_570_Wiyanna_iMac: implicitclass://Brother_QL_570_Wiyanna_iMac/
device for Zebra_Technologies_ZTC_GK420d: usb://Zebra%20Technologies/ZTC%20GK420d?serial=28J164900175
device for Zebra_Technologies_ZTC_GK420d_Wiyanna_iMac: implicitclass://Zebra_Technologies_ZTC_GK420d_Wiyanna_iMac/
device for Zebra_Technologies_ZTC_GK420d_ZPL: usb://Zebra%20Technologies/ZTC%20GK420d?serial=28J164900175
device for Zebra_ZPL_wiyanna_opti: implicitclass://Zebra_ZPL_wiyanna_opti/

And the web interface for cups-browsed also does not show me the printer as a local printer in the 'Add printers' dialog.

I have installed the latest Brother DCP-L5500DN drivers from the Brother webpage. Also the printer used to work for years with this setup in the past. I'm out of ideas. How can I make cups / cups-browsed aware of this particular USB printer?

I can't install ncurses library on my computer. When I compile it with make , I get a fatal error n.curses.h: No such file or directory.

I tried to install it via terminal, however I didn't succeed. I've got this response: sudo apt-get install libncurses5 libncurses5:i386

Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libncurses5
E: Unable to locate package libncurses5:i386

I also tried to fix my source.list since I used: sudo tee /etc/apt/sources.list

However, it deleted everything on the file. Searching on web I found this:

deb http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse

deb http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse

deb http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse

deb http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse

(...)

Copied and pasted on my source.list and placed '#' where it says deb or deb-src. Now, I can't download any software via terminal, can you help me?

uname -a; arch

Linux muca 5.8.0-59-generic #66~20.04.1-Ubuntu SMP Thu Jun 17 11:14:10 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
x86_64

I have Ubuntu 18.04 Dual booting with Windows 10 on my HP-EliteBook-745-G2, and for some reason, I cannot seem to find WiFi networks through my WiFi adapter, but Ethernet works (however, Ethernet stops working properly if I shut my screen down, and go back into my laptop, forcing me to restart my laptop to use Ethernet).

What I have done that didn't work:

• Uninstalled Kernels and reinstalled.

• Tried using rtlwifi.new as a fix.

• Tried connecting through a hidden network, with different networks in different places.

• Reinstalled Ubuntu.

• sudo service network-manager restart

So I thought I would create a new post to get a different perspective here.

Side note: WiFi works perfectly on the Windows side of things, these problems persist only on my Ubuntu boot.

The output of lshw -C network gives:

$ sudo lshw -C network
[sudo] password for nathan: 
  *-network                 
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: enp1s0f0
       version: 0e
       serial: 30:8d:99:bf:09:ab
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full ip=10.0.0.167 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
       resources: irq:39 ioport:4000(size=256) memory:d5804000-d5804fff memory:d5800000-d5803fff
  *-network
       description: Wireless interface
       product: BCM4352 802.11ac Wireless Network Adapter
       vendor: Broadcom Limited
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlo1
       version: 03
       serial: 28:c2:dd:8f:85:ec
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) latency=0 multicast=yes wireless=IEEE 802.11
       resources: irq:38 memory:d0a00000-d0a07fff memory:d0800000-d09fffff

Edit: Just for the people using edits to correct my grammar, 'I'd' is the same as 'I would'.

Another edit: Ran rfkill list all and here's the results:

    $ rfkill list all
0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: brcmwl-0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

Then ran : dmesg | grep wl to produce:

$ dmesg | grep wl
[    0.000000] DMI: Hewlett-Packard HP EliteBook 745 G2/221C, BIOS M84 Ver. 01.07 03/10/2015
[    6.918774] wl: loading out-of-tree module taints kernel.
[    6.918782] wl: module license 'MIXED/Proprietary' taints kernel.
[    6.951608] wl: module verification failed: signature and/or required key missing - tainting kernel
[    7.123725] wlan0: Broadcom BCM43b1 802.11 Hybrid Wireless Controller 6.30.223.271 (r587334)
[    7.330784] wl 0000:02:00.0 wlo1: renamed from wlan0
[   10.672629] IPv6: ADDRCONF(NETDEV_UP): wlo1: link is not ready
[   10.791775] IPv6: ADDRCONF(NETDEV_UP): wlo1: link is not ready

Full diagnostics

 $ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)

Edit again

    :~$ sudo modprobe wl && dmesg | grep wl
[    0.000000] DMI: Hewlett-Packard HP EliteBook 745 G2/221C, BIOS M84 Ver. 01.07 03/10/2015
[    7.004949] wl: loading out-of-tree module taints kernel.
[    7.004958] wl: module license 'MIXED/Proprietary' taints kernel.
[    7.011342] wl: module verification failed: signature and/or required key missing - tainting kernel
[    7.888998] wlan0: Broadcom BCM43b1 802.11 Hybrid Wireless Controller 6.30.223.271 (r587334)
[    7.923740] wl 0000:02:00.0 wlo1: renamed from wlan0
[   11.818773] IPv6: ADDRCONF(NETDEV_UP): wlo1: link is not ready
[   11.937130] IPv6: ADDRCONF(NETDEV_UP): wlo1: link is not ready
[ 2546.180968] IPv6: ADDRCONF(NETDEV_UP): wlo1: link is not ready
[ 2546.291784] IPv6: ADDRCONF(NETDEV_UP): wlo1: link is not ready

I created and enabled a service:

$ sudo systemctl enable /path/to/imaservice.service
Created symlink /etc/systemd/system/multi-user.target.wants/imaservice.service → /path/to/imaservice.service.
Created symlink /etc/systemd/system/imaservice.service → /path/to/imaservice.service.

It exists and persists in both:

/etc/systemd/system/imaservice.service
/etc/systemd/system/multi-user.target.wants/imaservice.service

I can now start/stop/status it happily. When I reboot, I can't start it. I get the following:

$sudo systemctl is-enabled imaservice
enabled

However:

$sudo systemctl start imaservice
Failed to start imaservice.service: Unit imaservice.service not found.

Every time I reboot, I have to re-enable with:

$sudo systemctl enable imaservice
$sudo systemctl daemon-reload

And after this it's back to normal.

What am I doing wrong?

my WiFi adapter Qualcomm Atheros QCA9565/AR9565 Wireless Network Adapter.doesn't work or even appear in the system settings.I'm using ubuntu 18.04 with a dual boot with windows 10.the WiFi adapter works in windows. output of lspci -knn | grep Net -A3:

03:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01)
Subsystem: Lite-On Communications Inc QCA9565 / AR9565 Wireless Network Adapter [11ad:0803]
Kernel modules: ath9k

lspci -knn | grep Net -A2

03:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01)
Subsystem: Lite-On Communications Inc QCA9565 / AR9565 Wireless Network Adapter [11ad:0803]
Kernel modules: ath9k

sudo rfkill list

0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no

sudo lshw -C network

*-network  

   description: Ethernet interface
   product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
   vendor: Realtek Semiconductor Co., Ltd.
   physical id: 0
   bus info: pci@0000:02:00.0
   logical name: enp2s0
   version: 15
   serial: 1c:39:47:53:6c:4b
   size: 10Mbit/s
   capacity: 1Gbit/s
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
   configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
   resources: irq:-2147483648 ioport:3000(size=256) memory:c1104000-c1104fff memory:c1100000-c1103fff
 *-network UNCLAIMED
   description: Network controller
   product: QCA9565 / AR9565 Wireless Network Adapter
   vendor: Qualcomm Atheros
   physical id: 0
   bus info: pci@0000:03:00.0
   version: 01
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress cap_list
   configuration: latency=0
   resources: memory:c1000000-c107ffff memory:c1080000-c108ffff
 *-network
   description: Ethernet interface
   physical id: 1
   logical name: enp0s20u1
   serial: 76:f5:dc:14:1d:16
   capabilities: ethernet physical
   configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.239 link=yes multicast=yes

dmesg | grep ath9k

[   21.252360] ath9k 0000:03:00.0: PCI INT A: not connected
[   21.252404] ath9k 0000:03:00.0: request_irq failed
[   21.252423] ath9k: probe of 0000:03:00.0 failed with error -107

Yesterday I updated the SMPlayer to the 17.10.0 (revision 8701). After update I can not hear any sound. I tried all output drivers: ALSA, pulse, oss, jack, pcm, sdl and sndio but none of them works.

After that I did remove and purge smplayer* and removed .config/smplayer/ folder and reinstall SMPlayer but the problem still exists.

On the GNOME control panel>sound>Applications SMPlayer does not list there when it is open.

The weird thing is mpv media player has sound.

What went wrong on my SMPlayer? How can I fix it?

I'm Using: Ubuntu 16.04 GNOME

GNOME shell 3.18.5

I would like to install LINE chat platform on my Ubuntu 12.04 LTS system. Please, could anyone provide me the steps to successfully install this software?. I've been trying to install this software using wine but I couldn't succeed it.