Error root Nautilus Ubuntu 26.04 https://askubuntu.com/questions/1566229/error-root-nautilus-ubuntu-26-04

When I open the location of root on my NVME drive in Nautilus where ubuntu is installed I get:



Error mounting /dev/nvme0n1p8 at /run/media/ubuntu/OS:   wrong fs type,bad option,bad superblock on /dev/nvme0n1p8,missing codepage   or helper program,or other error.

Tried fsck, didn't helped

firefox snap opens with duplicated icon in plank on ubuntu budgie 24.04 after recent snap update https://askubuntu.com/questions/1566227/firefox-snap-opens-with-duplicated-icon-in-plank-on-ubuntu-budgie-24-04-after-re

I have Firefox pinned to my plank dock. Since the last snap update (April 2026, Firefox 150.0 (64-Bit) Snap for Ubuntu canonical-002-1.0), when I open Firefox the opened window creates a new temporary icon on the outer section of the plank dock where normally programs, that are not pinned to the dock, place temporary icons while open. If I open another Firefox window this window is added to the new temporary icon, so that I can switch between them with right-mouse click. However, with a right-click the usual option to pin the icon to the dock does not exist.

The dock launcher in home/user/.config/plank/dock/firefox_firefox.dockitem shows:

[PlankDockItemPreferences]
Launcher=file:///var/lib/snapd/desktop/applications/firefox_firefox.desktop

The refrences file: file:///var/lib/snapd/desktop/applications/firefox_firefox.desktop

[Desktop Entry]
X-SnapInstanceName=firefox
Version=1.0
Type=Application
X-SnapAppName=firefox
Exec=/snap/bin/firefox %u
Terminal=false
Icon=/snap/firefox/current/default256.png
StartupWMClass=firefox-beta
Categories=GNOME;GTK;Network;WebBrowser;
MimeType=application/json;application/pdf;application/rdf+xml;application/rss+xml;application/x-xpinstall;application/xhtml+xml;application/xml;audio/flac;audio/ogg;audio/webm;image/avif;image/gif;image/jpeg;image/png;image/svg+xml;image/webp;text/html;text/xml;video/ogg;video/webm;x-scheme-handler/chrome;x-scheme-handler/http;x-scheme-handler/https;x-scheme-handler/mailto;
StartupNotify=true
Actions=new-window;new-private-window;open-profile-manager;
Name=Firefox
(... skipping the translations etc.)
[Desktop Action new-window]
X-SnapAppName=firefox
Exec=/snap/bin/firefox --new-window %u
Name=New Window
(...)
[Desktop Action new-private-window]
X-SnapAppName=firefox
Exec=/snap/bin/firefox --private-window %u
Name=New Private Window
(...)
[Desktop Action open-profile-manager]
X-SnapAppName=firefox
Exec=/snap/bin/firefox --ProfileManager
Name=Open Profile Manager

Searching for a solution I found this post on a similar problem with Chrome browser plank has duplicate icons for added launchers in LXDE that points to change some entry names in config. Maybe something similar helps with Firefox? Any help is welcome.

Apt install options, parameters [duplicate] https://askubuntu.com/questions/1566225/apt-install-options-parameters

What does -y parameter mean in apt install? For example: apt install file -y. I could not find any information on the web.

how can I get canon mg2541s drivers for linux deb? https://askubuntu.com/questions/1566224/how-can-i-get-canon-mg2541s-drivers-for-linux-deb

i'm using an acer laptop, which doesn't have the cd slot. the official canon site reports the os as incompatible... and i'm not willing to get another canon device.

Why a session leader can not change it's pgid? [closed] https://askubuntu.com/questions/1566223/why-a-session-leader-can-not-change-its-pgid

Why a session leader can not change it's Pgid?Why it's restricted what is the reason ?

Stuck at initramfs https://askubuntu.com/questions/1566221/stuck-at-initramfs

Computer had a fit and seems to not have the ability to boot. I have no idea where my live usb is to reinstall and my wife's computer has its usb slots disabled by her workplace IT guys I think my / partition is at sda 6 ; sda 7 is /home and sda 8 is swap If Ibtype 'help' as suggested, it lists many choices, none of which I know what to use. I am using ubuntu 24.04

Change of order for the week days on the Ubuntu calendar of the top bar https://askubuntu.com/questions/1566219/change-of-order-for-the-week-days-on-the-ubuntu-calendar-of-the-top-bar

Is there any way to alter the day of the week in the Ubuntu clock without altering the locale specifications? I am using the English version, and the order of the days of the week is:

Sunday, Monday, Tuesday,..., Saturday.

That is rather confusing for me, because I am more used to weeks starting in Monday and finishing in Sunday. I have navigated for the Ubuntu options that I could think of, and search on the web, but almost all answers that I see are about change the display of the date and time in the top bar. I do not want to modify this, but the order of week days in the expandable calendar of the month that appears when you click on the date so that they are:

Monday, Tuesday,..., Sunday

Any help will be very welcome, of course.

And, by the way, I would like to use this question to thank to all the programmers and people who is building the Open source community. If by chance you have no idea about whether your extraordinary hard work is worth or not, at least to me is more than worth. It is an essential part of my live and job.

How is realpath better than readlink for canonicalization functionality? https://askubuntu.com/questions/1566215/how-is-realpath-better-than-readlink-for-canonicalization-functionality

Man page of readlink says from 18.04 to 24.04 that

Note realpath(1) is the preferred command to use for canonicalization functionality.

and in 26.04

realpath(1) is a better command for canonicalization functionality.

How to pip uninstall? It fails with Invalid cross-device link https://askubuntu.com/questions/1566209/how-to-pip-uninstall-it-fails-with-invalid-cross-device-link

I upgraded from Ubuntu 25.10 to Ubuntu 26.04. I want to remove all from pip. How to do it? For example how to remove aiodns? It was installed to Ubuntu 25.10 with --break-system-packages option. While removing I got strange err

$ pip uninstall -v aiodns --break-system-packages 
Found existing installation: aiodns 4.0.0
Uninstalling aiodns-4.0.0:
  Would remove:
    /usr/lib/python3/dist-packages/aiodns
    /usr/lib/python3/dist-packages/aiodns-4.0.0.egg-info
  Will actually move:
    /usr/lib/python3/dist-packages/aiodns
    /usr/lib/python3/dist-packages/aiodns-4.0.0.egg-info
Proceed (Y/n)? Y
ERROR: Exception:
Traceback (most recent call last):
  File "/usr/lib/python3.14/shutil.py", line 918, in move
    os.rename(src, real_dst)
    ~~~~~~~~~^^^^^^^^^^^^^^^
OSError: [Errno 18] Invalid cross-device link: '/usr/lib/python3/dist-packages/aiodns' -> '/tmp/pip-uninstall-nd8qv0ip'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/a/.local/lib/python3.14/site-packages/pip/_internal/cli/base_command.py", line 109, in _run_wrapper
    status = _inner_run()
  File "/home/a/.local/lib/python3.14/site-packages/pip/_internal/cli/base_command.py", line 102, in _inner_run
    return self.run(options, args)
           ~~~~~~~~^^^^^^^^^^^^^^^
  File "/home/a/.local/lib/python3.14/site-packages/pip/_internal/commands/uninstall.py", line 105, in run
    uninstall_pathset = req.uninstall(
        auto_confirm=options.yes,
        verbose=self.verbosity > 0,
    )
  File "/home/a/.local/lib/python3.14/site-packages/pip/_internal/req/req_install.py", line 685, in uninstall
    uninstalled_pathset.remove(auto_confirm, verbose)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/a/.local/lib/python3.14/site-packages/pip/_internal/req/req_uninstall.py", line 378, in remove
    moved.stash(path)
    ~~~~~~~~~~~^^^^^^
  File "/home/a/.local/lib/python3.14/site-packages/pip/_internal/req/req_uninstall.py", line 263, in stash
    renames(path, new_path)
    ~~~~~~~^^^^^^^^^^^^^^^^
  File "/home/a/.local/lib/python3.14/site-packages/pip/_internal/utils/misc.py", line 344, in renames
    shutil.move(old, new)
    ~~~~~~~~~~~^^^^^^^^^^
  File "/usr/lib/python3.14/shutil.py", line 936, in move
    rmtree(src)
    ~~~~~~^^^^^
  File "/usr/lib/python3.14/shutil.py", line 852, in rmtree
    _rmtree_impl(path, dir_fd, onexc)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.14/shutil.py", line 721, in _rmtree_safe_fd
    _rmtree_safe_fd_step(stack, onexc)
    ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
  File "/usr/lib/python3.14/shutil.py", line 802, in _rmtree_safe_fd_step
    onexc(func, path, err)
    ~~~~~^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.14/shutil.py", line 795, in _rmtree_safe_fd_step
    onexc(os.unlink, fullname, err)
    ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.14/shutil.py", line 791, in _rmtree_safe_fd_step
    os.unlink(entry.name, dir_fd=topfd)
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/usr/lib/python3/dist-packages/aiodns'

I also tried pip uninstall --break-system-packages -y -r <(pip freeze) to remove all but result is the same.

I don't know why I have Invalid cross-device link because as I know /usr and /home and /tmp are on the same BTRFS disk:

Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system  Name  Flags
 2      1049kB  1128MB  1127MB  fat32              boot, esp
 1      1128MB  512GB   511GB   btrfs

Another interesting fact. I have cmake installed by pip, but pip says different

$ pip uninstall -v cmake --break-system-packages 
WARNING: Skipping cmake as it is not installed.

But I think cmake in-fact is installed but became broken while Ubuntu upgrade because

$ which cmake
/home/a/.local/bin/cmake
$ cmake --help
Traceback (most recent call last):
  File "/home/a/.local/bin/cmake", line 5, in <module>
    from cmake import cmake
ModuleNotFoundError: No module named 'cmake'
How to open Launchpad project directly without reporting an apport-bug? https://askubuntu.com/questions/1566205/how-to-open-launchpad-project-directly-without-reporting-an-apport-bug

Given a local package name, I would like to open the corresponding Launchpad project in the browser. apport-bug supports this, but requires first filing a bug. I would like to go on Launchpad to read the changelog or search for duplicate bugs.

My current manual workflow is this: Retrieve the package name from dpkg -S /path or apt list --upgradable. Convert to a project name if dpkg -s packagename has a Source: line. Manually type in https://launchpad.net/ubuntu/+source/projectname in Firefox.

I would like mycommand subcommand [pid | packagename | program path] to automatically open that one Launchpad page. Launchpad sometimes takes a few seconds to load, so I don't want to need to visit multiple Launchpad pages. Is there a built-in command that supports this?

Furthermore, the Launchpad.net search feature suggested by @user1898883 is broken. https://launchpad.net/+search?field.text=aspnetcore-runtime-10.0 and https://launchpad.net/+search?field.text=dotnet10&field.actions.search=Search both return the unrelated https://bugs.launchpad.net/bugs/10 and https://answers.launchpad.net/ubuntu/+question/10 .

Kubuntu 26.04 UI freeze when moving mouse on external monitor https://askubuntu.com/questions/1566203/kubuntu-26-04-ui-freeze-when-moving-mouse-on-external-monitor

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.

How to significantly reduce memory usage of GTK4 applications in computers with low RAM running Ubuntu? https://askubuntu.com/questions/1566199/how-to-significantly-reduce-memory-usage-of-gtk4-applications-in-computers-with

I use Ubuntu on a Chromebook with only 4GB of memory, and GTK4 apps consume a lot of memory.

Examples:

  1. Even a hello world window may consume more than 100 mb of memory

  2. One app was reported to have a 3 fold memory increase after switching from GTK3 to GTK4.

Is there any workaround?

Install Ubuntu 26.04 app fails https://askubuntu.com/questions/1566192/install-ubuntu-26-04-app-fails

Suggested answer refers to minimum hardware requirements for 26.04. My system processor exceeds minimum as it is rated at 3.20ghz. The only below minimum is 4gb versus 6gb. While I understand this recommended answer, why is my system able to run 26.04 from the usb? Further, the app center failed in a similar manner and was corrected by disabling "opengl" in app settings. Is there a log which could be reviewed for install release failure?

attempting to install ubuntu 26.04 lts. install release app fails. click on install release button, app displays a black square on screen, which then disappears.

This same issue occurred with "app center" application. fixed this issue by disable "opengl" in app settings (for "app center").

was able to boot 26.04 from usb in trial mode, creating this question from the trial system. system details below.

# System Details Report ---

## Report details

- **Date generated:** 2026-04-28 17:59:11

## Hardware Information:

- **Hardware Model:** Dell Inc. Inspiron 560

- **Memory:** 4.0 GiB

- **Processor:** Pentium® E6700 × 2

- **Graphics:** Intel® G45/G43

- **Disk Capacity:** 1.0 TB

## Software Information:

- **Firmware Version:** A06

- **OS Name:** Ubuntu 26.04 LTS

- **OS Build:** (null)

- **OS Type:** 64-bit

- **GNOME Version:** 50

- **Windowing System:** Wayland

- **Kernel Version:** Linux 7.0.0-14-generic

Kubuntu 24.04 X11 desktop hard freezing ~hourly https://askubuntu.com/questions/1566169/kubuntu-24-04-x11-desktop-hard-freezing-hourly

As the title says, I am encountering an issue with the desktop becoming entirely unresponsive somewhat randomly, and I am unable to bring up terminal. My only option so far when this happens has been alt+prtsc+REISUB to reboot cleanly, as it is unresponsive to everything else except holding the power button.

(My computer froze as I was writing the above paragraph, it really is rather inconvenient -- one reboot later)

Originally, I thought it was due to some problem with Firefox since it used to also happen while Firefox was doing something intense like a complex Desmos animation or Google Earth. I have uninstalled Firefox and instead installed Librewolf, and I can do these same things without it freezing. However, the freezing still occurs, now just randomly.

Noteably, neither the CPU nor RAM usage spike when it freezes, in fact for almost all of the freezes both my RAM and CPU usage has stayed below 10%.

journalctl -b -1 -ke is silent between boot and freeze, but says this two minutes after the freeze:

Apr 27 19:05:21 evan-rogstrix kernel: INFO: task kworker/u64:6:30275 blocked for more than 122 seconds.
Apr 27 19:05:21 evan-rogstrix kernel:       Tainted: G           OE       6.17.0-22-generic #22~24.04.1-Ubuntu
Apr 27 19:05:21 evan-rogstrix kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 27 19:05:21 evan-rogstrix kernel: task:kworker/u64:6   state:D stack:0     pid:30275 tgid:30275 ppid:2      task_flags:0x4208060 flags:0x00004000
Apr 27 19:05:21 evan-rogstrix kernel: Workqueue: events_unbound commit_work
Apr 27 19:05:21 evan-rogstrix kernel: Call Trace:
Apr 27 19:05:21 evan-rogstrix kernel:  <TASK>
Apr 27 19:05:21 evan-rogstrix kernel:  __schedule+0x30d/0x7a0
Apr 27 19:05:21 evan-rogstrix kernel:  schedule+0x27/0x90
Apr 27 19:05:21 evan-rogstrix kernel:  schedule_timeout+0x104/0x110
Apr 27 19:05:21 evan-rogstrix kernel:  dma_fence_default_wait+0x1f0/0x250
Apr 27 19:05:21 evan-rogstrix kernel:  ? __pfx_dma_fence_default_wait_cb+0x10/0x10
Apr 27 19:05:21 evan-rogstrix kernel:  dma_fence_wait_timeout+0x13a/0x170
Apr 27 19:05:21 evan-rogstrix kernel:  drm_atomic_helper_wait_for_fences+0x164/0x1f0
Apr 27 19:05:21 evan-rogstrix kernel:  commit_tail+0x3b/0x1b0
Apr 27 19:05:21 evan-rogstrix kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Apr 27 19:05:21 evan-rogstrix kernel:  commit_work+0x12/0x20
Apr 27 19:05:21 evan-rogstrix kernel:  process_one_work+0x191/0x3e0
Apr 27 19:05:21 evan-rogstrix kernel:  worker_thread+0x2e3/0x420
Apr 27 19:05:21 evan-rogstrix kernel:  ? _raw_spin_lock_irqsave+0xe/0x20
Apr 27 19:05:21 evan-rogstrix kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Apr 27 19:05:21 evan-rogstrix kernel:  ? __pfx_worker_thread+0x10/0x10
Apr 27 19:05:21 evan-rogstrix kernel:  kthread+0x10d/0x230
Apr 27 19:05:21 evan-rogstrix kernel:  ? __pfx_kthread+0x10/0x10
Apr 27 19:05:21 evan-rogstrix kernel:  ret_from_fork+0x124/0x140
Apr 27 19:05:21 evan-rogstrix kernel:  ? __pfx_kthread+0x10/0x10
Apr 27 19:05:21 evan-rogstrix kernel:  ret_from_fork_asm+0x1a/0x30
Apr 27 19:05:21 evan-rogstrix kernel:  </TASK>
<repeats a few times>
Apr 27 19:13:33 evan-rogstrix kernel: Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
<came back to my computer, tried to move the mouse>
Apr 27 19:25:12 evan-rogstrix kernel: amdgpu 0000:06:00.0: amdgpu: [drm] *ERROR* [CRTC:86:crtc-0] hw_done or flip_done timed out
Apr 27 19:25:22 evan-rogstrix kernel: amdgpu 0000:06:00.0: amdgpu: [drm] *ERROR* [CRTC:90:crtc-1] hw_done or flip_done timed out

and /var/log/syslog gives this as it freezes

2026-04-27T19:03:46.836906-04:00 evan-rogstrix kwin_x11[2223]: kwin_scene_opengl: A graphics reset attributable to the current GL context occurred.
2026-04-27T19:03:47.002080-04:00 evan-rogstrix kwin_x11[2223]: OpenGL vendor string:                   NVIDIA Corporation
2026-04-27T19:03:47.002136-04:00 evan-rogstrix kwin_x11[2223]: OpenGL renderer string:                 NVIDIA GeForce RTX 3080 Laptop GPU/PCIe/SSE2
2026-04-27T19:03:47.002163-04:00 evan-rogstrix kwin_x11[2223]: OpenGL version string:                  3.1.0 NVIDIA 580.126.09
2026-04-27T19:03:47.002189-04:00 evan-rogstrix kwin_x11[2223]: OpenGL shading language version string: 1.40 NVIDIA via Cg compiler
2026-04-27T19:03:47.002212-04:00 evan-rogstrix kwin_x11[2223]: Driver:                                 NVIDIA
2026-04-27T19:03:47.002282-04:00 evan-rogstrix kwin_x11[2223]: Driver version:                         580.126.9
2026-04-27T19:03:47.002321-04:00 evan-rogstrix kwin_x11[2223]: GPU class:                              Unknown
2026-04-27T19:03:47.002348-04:00 evan-rogstrix kwin_x11[2223]: OpenGL version:                         3.1
2026-04-27T19:03:47.002373-04:00 evan-rogstrix kwin_x11[2223]: GLSL version:                           1.40
2026-04-27T19:03:47.002398-04:00 evan-rogstrix kwin_x11[2223]: X server version:                       1.21.1
2026-04-27T19:03:47.002423-04:00 evan-rogstrix kwin_x11[2223]: Linux kernel version:                   6.17
2026-04-27T19:03:47.002447-04:00 evan-rogstrix kwin_x11[2223]: Requires strict binding:                no
2026-04-27T19:03:47.002471-04:00 evan-rogstrix kwin_x11[2223]: GLSL shaders:                           yes
2026-04-27T19:03:47.002494-04:00 evan-rogstrix kwin_x11[2223]: Texture NPOT support:                   yes
2026-04-27T19:03:47.002515-04:00 evan-rogstrix kwin_x11[2223]: Virtual Machine:                        no
2026-04-27T19:03:47.012336-04:00 evan-rogstrix kwin_x11[2223]: BlurConfig::instance called after the first use - ignoring
2026-04-27T19:03:47.015592-04:00 evan-rogstrix kwin_x11[2223]: ZoomConfig::instance called after the first use - ignoring
2026-04-27T19:03:47.018271-04:00 evan-rogstrix kwin_x11[2223]: WindowViewConfig::instance called after the first use - ignoring
2026-04-27T19:03:47.020067-04:00 evan-rogstrix kwin_x11[2223]: SlidingPopupsConfig::instance called after the first use - ignoring
2026-04-27T19:03:47.020663-04:00 evan-rogstrix kwin_x11[2223]: SlideConfig::instance called after the first use - ignoring
2026-04-27T19:03:47.021045-04:00 evan-rogstrix kwin_x11[2223]: OverviewConfig::instance called after the first use - ignoring
2026-04-27T19:03:47.021136-04:00 evan-rogstrix kwin_x11[2223]: KscreenConfig::instance called after the first use - ignoring
2026-04-27T19:03:47.021924-04:00 evan-rogstrix kwin_x11[2223]: DesktopGridConfig::instance called after the first use - ignoring

here's inxi -Fxxxrzc0:

System:
  Kernel: 6.17.0-22-generic arch: x86_64 bits: 64 compiler: gcc v: 13.3.0
    clocksource: hpet
  Desktop: KDE Plasma v: 5.27.12 tk: Qt v: 5.15.13 wm: kwin_x11 vt: 2
    dm: SDDM Distro: Kubuntu 24.04.4 LTS (Noble Numbat) base: Ubuntu
Machine:
  Type: Laptop System: ASUSTeK product: ROG Strix G533QS v: 1.0
    serial: <superuser required>
  Mobo: ASUSTeK model: G533QS v: 1.0 serial: <superuser required>
    UEFI: American Megatrends LLC. v: G533QS.331 date: 02/24/2023
Battery:
  ID-1: BAT0 charge: 70.5 Wh (100.0%) condition: 70.5/90.0 Wh (78.3%)
    volts: 16.6 min: 15.9 model: AS3GWAF3KC GA50358 type: Li-ion
    serial: <filter> status: full
CPU:
  Info: 8-core model: AMD Ryzen 9 5900HX with Radeon Graphics bits: 64
    type: MT MCP smt: enabled arch: Zen 3 rev: 0 cache: L1: 512 KiB L2: 4 MiB
    L3: 16 MiB
  Speed (MHz): avg: 1528 high: 2728 min/max: 413/4893 boost: enabled cores:
    1: 1091 2: 1091 3: 2409 4: 2435 5: 1091 6: 2437 7: 1091 8: 1091 9: 1091
    10: 1091 11: 1091 12: 1091 13: 2728 14: 1091 15: 1091 16: 2447
    bogomips: 105407
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Graphics:
  Device-1: NVIDIA GA104M [GeForce RTX 3080 Mobile / Max-Q 8GB/16GB]
    vendor: ASUSTeK driver: nvidia v: 580.126.09 arch: Ampere pcie:
    speed: 5 GT/s lanes: 8 ports: active: none empty: DP-1 bus-ID: 01:00.0
    chip-ID: 10de:249c class-ID: 0300
  Device-2: AMD Cezanne [Radeon Vega Series / Radeon Mobile Series]
    vendor: ASUSTeK driver: amdgpu v: kernel arch: GCN-5 pcie: speed: 8 GT/s
    lanes: 16 ports: active: HDMI-A-1,eDP-1 empty: none bus-ID: 06:00.0
    chip-ID: 1002:1638 class-ID: 0300 temp: 60.0 C
  Device-3: webcamvendor NexiGo N60 FHD Webcam
    driver: snd-usb-audio,uvcvideo type: USB rev: 2.0 speed: 480 Mb/s lanes: 1
    bus-ID: 3-1.4.1:5 chip-ID: 3443:60bb class-ID: 0102 serial: <filter>
  Display: x11 server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6
    compositor: kwin_x11 driver: X: loaded: amdgpu,nvidia
    unloaded: fbdev,modesetting,nouveau,vesa dri: radeonsi gpu: amdgpu
    display-ID: :0 screens: 1
  Screen-1: 0 s-res: 2560x2520 s-dpi: 75 s-size: 868x855mm (34.17x33.66")
    s-diag: 1218mm (47.97")
  Monitor-1: HDMI-A-1 mapped: HDMI-A-1-0 pos: top-left model: Dell U2718Q
    serial: <filter> res: 2560x1440 hz: 60 dpi: 107
    size: 609x349mm (23.98x13.74") diag: 702mm (27.6") modes: max: 3840x2160
    min: 720x400
  Monitor-2: eDP-1 mapped: eDP-1-0 pos: primary,bottom-r
    model: TL156VDXP0101 res: 1920x1080 hz: 300 dpi: 142
    size: 344x194mm (13.54x7.64") diag: 395mm (15.5") modes: max: 1920x1080
    min: 640x480
  API: EGL v: 1.5 hw: drv: nvidia drv: amd radeonsi platforms: device: 0
    drv: nvidia device: 2 drv: radeonsi device: 3 drv: swrast gbm: drv: nvidia
    surfaceless: drv: nvidia x11: drv: nvidia inactive: wayland,device-1
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: nvidia mesa v: 580.126.09
    glx-v: 1.4 direct-render: yes renderer: NVIDIA GeForce RTX 3080 Laptop
    GPU/PCIe/SSE2
  API: Vulkan v: 1.3.275 layers: 9 surfaces: xcb,xlib device: 0
    type: discrete-gpu driver: N/A device-ID: 10de:249c device: 1
    type: integrated-gpu driver: N/A device-ID: 1002:1638 device: 2 type: cpu
    driver: N/A device-ID: 10005:0000
Audio:
  Device-1: NVIDIA GA104 High Definition Audio vendor: ASUSTeK
    driver: snd_hda_intel v: kernel pcie: speed: 8 GT/s lanes: 8 bus-ID: 01:00.1
    chip-ID: 10de:228b class-ID: 0403
  Device-2: AMD Renoir Radeon High Definition Audio vendor: ASUSTeK
    driver: snd_hda_intel v: kernel pcie: speed: 8 GT/s lanes: 16
    bus-ID: 06:00.1 chip-ID: 1002:1637 class-ID: 0403
  Device-3: AMD ACP/ACP3X/ACP6x Audio Coprocessor vendor: ASUSTeK
    driver: N/A pcie: speed: 8 GT/s lanes: 16 bus-ID: 06:00.5 chip-ID: 1022:15e2
    class-ID: 0480
  Device-4: AMD Family 17h/19h HD Audio vendor: ASUSTeK
    driver: snd_hda_intel v: kernel pcie: speed: 8 GT/s lanes: 16
    bus-ID: 06:00.6 chip-ID: 1022:15e3 class-ID: 0403
  Device-5: webcamvendor NexiGo N60 FHD Webcam
    driver: snd-usb-audio,uvcvideo type: USB rev: 2.0 speed: 480 Mb/s lanes: 1
    bus-ID: 3-1.4.1:5 chip-ID: 3443:60bb class-ID: 0102 serial: <filter>
  API: ALSA v: k6.17.0-22-generic status: kernel-api
  Server-1: PipeWire v: 1.0.5 status: active with: 1: pipewire-pulse
    status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
    4: pw-jack type: plugin
Network:
  Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
    vendor: ASUSTeK RTL8111/8168/8411 driver: r8169 v: kernel pcie:
    speed: 2.5 GT/s lanes: 1 port: e000 bus-ID: 02:00.0 chip-ID: 10ec:8168
    class-ID: 0200
  IF: enp2s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
  Device-2: MEDIATEK MT7921 802.11ax PCI Express Wireless Network Adapter
    vendor: AzureWave driver: mt7921e v: kernel pcie: speed: 5 GT/s lanes: 1
    bus-ID: 03:00.0 chip-ID: 14c3:7961 class-ID: 0280
  IF: wlp3s0 state: up mac: <filter>
  IF-ID-1: wg0-mullvad state: unknown speed: N/A duplex: N/A mac: N/A
Bluetooth:
  Device-1: IMC Networks Wireless_Device driver: btusb v: 0.8 type: USB
    rev: 2.1 speed: 480 Mb/s lanes: 1 bus-ID: 3-4:3 chip-ID: 13d3:3563
    class-ID: e001 serial: <filter>
  Report: hciconfig ID: hci0 rfk-id: 0 state: up address: <filter> bt-v: 5.2
    lmp-v: 11 sub-v: 2402 hci-v: 11 rev: 1911 class-ID: 7c010c
Drives:
  Local Storage: total: 1.84 TiB used: 1.29 TiB (70.0%)
  ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 970 EVO Plus 1TB
    size: 931.51 GiB speed: 31.6 Gb/s lanes: 4 tech: SSD serial: <filter>
    fw-rev: 2B2QEXM7 temp: 37.9 C scheme: GPT
  ID-2: /dev/nvme1n1 vendor: Samsung model: MZVLQ1T0HBLB-00B00
    size: 953.87 GiB speed: 31.6 Gb/s lanes: 4 tech: SSD serial: <filter>
    fw-rev: FXM7201Q temp: 36.9 C scheme: GPT
Partition:
  ID-1: / size: 937.53 GiB used: 534.54 GiB (57.0%) fs: ext4
    dev: /dev/nvme1n1p2
  ID-2: /boot/efi size: 299.4 MiB used: 7.8 MiB (2.6%) fs: vfat
    dev: /dev/nvme1n1p1
Swap:
  ID-1: swap-1 type: file size: 512 MiB used: 0 KiB (0.0%) priority: -2
    file: /swapfile
Sensors:
  System Temperatures: cpu: 75.2 C mobo: 40.0 C
  Fan Speeds (rpm): N/A
  GPU: device: nvidia screen: :0.0 temp: 52 C device: amdgpu temp: 62.0 C
Repos:
  Packages: 3235 pm: dpkg pkgs: 3218 pm: flatpak pkgs: 17
  No active apt repos in: /etc/apt/sources.list
  Active apt repos in: /etc/apt/sources.list.d/home:plugdata.list
    1: deb http://download.opensuse.org/repositories/home:/plugdata/xUbuntu_24.04/ /
  Active apt repos in: /etc/apt/sources.list.d/kxstudio-debian-ppas-2.list
    1: deb http://ppa.launchpad.net/kxstudio-debian/libs/ubuntu focal main
    2: deb http://ppa.launchpad.net/kxstudio-debian/plugins/ubuntu focal main
    3: deb http://ppa.launchpad.net/kxstudio-debian/apps/ubuntu focal main
    4: deb http://ppa.launchpad.net/kxstudio-debian/kxstudio/ubuntu focal main
  Active apt repos in: /etc/apt/sources.list.d/kxstudio-debian-ppas.list
    1: deb http://ppa.launchpad.net/kxstudio-debian/libs/ubuntu bionic main
    2: deb http://ppa.launchpad.net/kxstudio-debian/music/ubuntu bionic main
    3: deb http://ppa.launchpad.net/kxstudio-debian/plugins/ubuntu bionic main
    4: deb http://ppa.launchpad.net/kxstudio-debian/apps/ubuntu bionic main
    5: deb http://ppa.launchpad.net/kxstudio-debian/kxstudio/ubuntu bionic main
  Active apt repos in: /etc/apt/sources.list.d/mozilla.list
    1: deb [signed-by=/etc/apt/keyrings/packages.mozilla.org.asc] https://packages.mozilla.org/apt mozilla main
  Active apt repos in: /etc/apt/sources.list.d/mullvad.list
    1: deb [signed-by=/usr/share/keyrings/mullvad-keyring.asc arch=amd64] https://repository.mullvad.net/deb/stable stable main
  No active apt repos in: /etc/apt/sources.list.d/steam-beta.list
  Active apt repos in: /etc/apt/sources.list.d/steam-stable.list
    1: deb [arch=amd64,i386 signed-by=/usr/share/keyrings/steam.gpg] https://repo.steampowered.com/steam/ stable steam
    2: deb-src [arch=amd64,i386 signed-by=/usr/share/keyrings/steam.gpg] https://repo.steampowered.com/steam/ stable steam
  Active apt repos in: /etc/apt/sources.list.d/syncthing.list
    1: deb [signed-by=/etc/apt/keyrings/syncthing-archive-keyring.gpg] https://apt.syncthing.net/ syncthing stable-v2
  Active apt repos in: /etc/apt/sources.list.d/christian-boxdoerfer-ubuntu-fsearch-stable-noble.sources
    1: deb https://ppa.launchpadcontent.net/christian-boxdoerfer/fsearch-stable/ubuntu/ noble main
  Active apt repos in: /etc/apt/sources.list.d/extrepo_librewolf.sources
    1: deb [arch=amd64 arm64] https://repo.librewolf.net librewolf main
  Active apt repos in: /etc/apt/sources.list.d/kicad-ubuntu-kicad-10_0-releases-noble.sources
    1: deb https://ppa.launchpadcontent.net/kicad/kicad-10.0-releases/ubuntu/ noble main
  Active apt repos in: /etc/apt/sources.list.d/libreoffice-ubuntu-ppa-noble.sources
    1: deb https://ppa.launchpadcontent.net/libreoffice/ppa/ubuntu/ noble main
  Active apt repos in: /etc/apt/sources.list.d/mozillateam-ubuntu-ppa-noble.sources
    1: deb https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu/ noble main
  Active apt repos in: /etc/apt/sources.list.d/pdesaulniers-ubuntu-wolf-noble.sources
    1: deb https://ppa.launchpadcontent.net/pdesaulniers/wolf/ubuntu/ noble main
  Active apt repos in: /etc/apt/sources.list.d/signal-desktop.sources
    1: deb [arch=amd64] https://updates.signal.org/desktop/apt xenial main
  Active apt repos in: /etc/apt/sources.list.d/tomtomtom-ubuntu-yt-dlp-noble.sources
    1: deb https://ppa.launchpadcontent.net/tomtomtom/yt-dlp/ubuntu/ noble main
  Active apt repos in: /etc/apt/sources.list.d/ubuntu.sources
    1: deb http://us.archive.ubuntu.com/ubuntu noble noble-updates noble-backports main universe restricted multiverse
    2: deb http://security.ubuntu.com/ubuntu/ noble-security main universe restricted multiverse
  Active apt repos in: /etc/apt/sources.list.d/ubuntuhandbook1-ubuntu-audacity-noble.sources
    1: deb https://ppa.launchpadcontent.net/ubuntuhandbook1/audacity/ubuntu/ noble main
  Active apt repos in: /etc/apt/sources.list.d/ubuntuhandbook1-ubuntu-gimp-3-noble.sources
    1: deb https://ppa.launchpadcontent.net/ubuntuhandbook1/gimp-3/ubuntu/ noble main
  Active apt repos in: /etc/apt/sources.list.d/vscode.sources
    1: deb [arch=amd64] https://packages.microsoft.com/repos/code stable main
  Active apt repos in: /etc/apt/sources.list.d/winehq-noble.sources
    1: deb [arch=amd64 i386] https://dl.winehq.org/wine-builds/ubuntu noble main
Info:
  Memory: total: 64 GiB note: est. available: 62.22 GiB used: 3.8 GiB (6.1%)
  Processes: 419 Power: uptime: 10m states: freeze,mem,disk suspend: s2idle
    wakeups: 0 hibernate: platform Init: systemd v: 255 target: graphical (5)
    default: graphical
  Compilers: clang: 18.1.3 gcc: 13.3.0 Shell: Zsh v: 5.9 running-in: konsole
    inxi: 3.3.34

Please do let me know if there's any more information you need. This has been plaguing me for a little under a month now, and it's starting to get in the way of presentations I have to give.

Addendum - The latest few freezes show nothing unusual in /var/log/syslog and absolutely nothing in journalctl up until my sysrq, the computer just... stopped. The screen just completely froze with nothing to go off of. Are there any other logs that I can check that could possibly hint to what is actually going on?

Addendum 2 - details and notes

  • The freeze happened a couple times when I attempted to open Librewolf during the first 5 seconds after booting. It also happened once when I attempted to find a string in syslog (~300,000 lines) in Kate.
  • It does seem like sometimes the freeze exhibits the kwin_scene_opengl message in /var/log/syslog and sometimes it does not. When it does, the message is actually logged a few seconds after the freeze (most recent one was 15 seconds after the desktop froze). It's entirely possible this is two separate issues causing a similar freeze. It's also possible that the times the message is not in the log I simply restarted the computer too quickly.
  • I have tried following the process for disabling the Ryzen C6 power state here with no change, and I have tried disabling the amdgpu kernel module, resulting in no display out at all.
  • A couple times, only the desktop froze, and I could still move my mouse around, until I tried to cross a screen border with the cursor at which point it froze as well. The most recent one had the kwin_scene_opengl message, 13 seconds after the desktop froze. This specific type of freeze seems to recover sometimes after waiting about a minute.
  • None of the Ctrl + Alt + Function hotkeys respond, and so I am unable to access a terminal when the freeze happens.
  • When the freeze happens, the integrated GPU usage drops from 3% to 0%. The USB-C DP video out (which I believe is directly from the NVIDIA GPU) still updates even when the other screens are frozen, at least until I try to move the mouse across a screen border. This may be a problem with the amdgpu kernel module, although I am not knowledgable enough to make that call definitively yet.
  • attempting to use envycontrol to only use the dedicated GPU causes the crashes to become less frequent (about every 5 hours or so) and with a more consistent symptom (desktop freeze on all but external USB-C DP screen, full freeze when mouse crosses screen border, system still unresponsive to all key combos except alt+prtsc sysrq calls)
Ubuntu Studio 26.04 Manually set display coordinates for multi-displays? https://askubuntu.com/questions/1566168/ubuntu-studio-26-04-manually-set-display-coordinates-for-multi-displays

Just setting up Ubuntu Studio 26.04 and having issue with multiple displays.

I have four displays, three side by side and one centered above those. The one above is 3840x2160. The three side by side are 1680x1050, 1920x1050, 1680x1050 respectively.

In the KDE settings app the displays snap to each other when dragging them into the positions I want them. Unfortunately, they all want to align so that they share the same bottom Y coordinate. They don't seem to be able to use the top coordinates for snapping. That means that, instead of being able to align the 4k display's bottom to sit snugly at the top of the three smaller displays, the center one of the three lower displays overlaps into the 4k's display area. This is due to the different resolutions of the center vs the side displays. If I try to address it by moving the center screen lower, the side screens develope a gap causing mouse issues when trying to cross over between displays.

I've not found a way to set the coordinates manually, something I used to be able to do with xorg.

I can think of a couple of workarounds but don't know if they're possible and haven't found anything on them yet. The first would be to turn off the snapping and be able to drag the displays where they need to be. Zooming would be helpful if this is used. I dooubt it's possible but, if it is, could someone point me to how to do it?

The second would be to find some file someplace that I could manually enter the XY coordinates in, either that or find a way to do so in the KDE settings. Again, if someone could point me to a way to do this, it's much appreciated.

Lastly, I'm using the nouveau driver for this. When I tried an install with the nvidia driver there were other, worse issues than these, like no 4k display at all. Card is RTX3060.

thanks, babag

More in response to info from Daniel T.

I'm a little confused about how the json file interacts with the files I find in the ~/.local/share/kscreen/ location. I also have some confusion over the number of files I find there. My /home directory has migrated through a number of upgrades so I'm guessing that the various reinstalls through that process has caused files to be generated that are no longer in use. The Ubuntu installation media always has trouble with my multi-display setup so I always unplug all but one display when reinstalling. Also, sometimes when replugging after installation, one or more of the displays might not have its plug seated properly causing the setup to look like it has fewer displays than it should. Since some of the files I'm seeing have info for sometimes two, sometimes three displays, I'm guessing they were generated by this process. The files with the current or closest to current date seem to be correct.

In the ./local/share/kscreen directory I'm seeing a subdirectory called "outputs". That directory contains a bunch of files, four of which seem to correspond to my current displays and are named with a long hash for their filename. These files contain display settings but no position info. These hash-filenames appear in another file, directly in the /.local/share/kscreen directory, which does contain position info. Example:

        "enabled": true,
        "id": "81b7337a882eb972842e1b9f28a70351",
        "metadata": {
            "fullname": "xrandr-Envision Peripherals, Inc-G2016wa1-K1581CA002049",
            "name": "HDMI-0"
        },
        "mode": {
            "refresh": 59.95425033569336,
            "size": {
                "height": 1050,
                "width": 1680
            }
        },
        "overscan": 0,
        "pos": {
            "x": 3600,
            "y": 2160
        },
        "priority": 1,
        "rgbrange": 0,
        "rotation": 1,
        "scale": 1,
        "vrrpolicy": 2
    },

The x/y of 3600 and 2160 would be the coordinates for this display's positioning. I'm guessing that this might be something I would edit to make the fine adjustments I want to make.

However, there's the json file, which also contains these coordinates. (Unfortunately, I can't post an excerpt from that file as my 26.04 system keeps having display and crashing issues and I'm having to write this from my old 24.04 system, which doesn't seem to have that file, to be able to get through this posting.)

So, I don't know whether one of these files populates the other or if I have to edit both in order to make my adjustments.

Thanks for any clarification on this. Does seem like an editable text box in the main KDE System Setting app for Displays would be a far less arcane way of going about this. As I recall, the Nvidia app had that. Not in the 26.04 configuration though.

thanks, BabaG

Nautilus thumbnails 26.04 LTS https://askubuntu.com/questions/1566140/nautilus-thumbnails-26-04-lts

yesterday I updated my Ubuntu 24.04 LTS to 26.04 LTS. After updating, Nautilus file explorer is not displaying thumbnail previews for files added after the update. Is this a bug? How to resolve it? Thanks for the help.

Boot problems on battery power with Ubuntu 26.04 and Nvidia Drivers https://askubuntu.com/questions/1566131/boot-problems-on-battery-power-with-ubuntu-26-04-and-nvidia-drivers

after successfully upgrading from 24.04 to 26.04, when I boot my laptop on battery power most of the time I got stuck with a black screen and I'm forced to power off the laptop and boot it with AC plugged in. This happens only with Nvidia proprietary drivers and booting on battery power, no problem when AC is plugged in. off course everything was working fine with 24.04 and Xorg. Unfortunately I don't have any other info at the moment, I don't know if it's a problem with these drivers and the new kernel 7 and/or Wayland. Is anybody having a similar problem with 26.04?

Thank you.

How to stop/schedule auto updates on Ubuntu 26.04? https://askubuntu.com/questions/1565966/how-to-stop-schedule-auto-updates-on-ubuntu-26-04

With Ubuntu 24.04, I used the Software & Updates app to set the update frequency, schedule updates or stop them completely and do updates manually. (This is a requirement I have since I have limited bandwidth.)

I did the same for Snap with CLI commands that are well-documented. But for others, I'm a bit lost as the Software & Updates app is gone now.

Also, I know the Software & Updates app can be reinstalled, for now. But I'd like to know an alternative solution first, since they might ditch the Software & Updates app altogether in the future.

Problem customizing an Ubuntu 24 qcow2 image with virt-customize https://askubuntu.com/questions/1565586/problem-customizing-an-ubuntu-24-qcow2-image-with-virt-customize

I'm using an Ubuntu 24.04 server to customize a qcow2 file (also Ubuntu 24.04). When I did this on an Ubuntu 22.04 server, this process seemed to work. Now I'm getting a few errors that I can't seem to resolve. I run virt-customize --network

When the image is booting, see these errors

+ grep nameserver /etc/resolv.conf
grep: /etc/resolv.conf: No such file or directory
No filesystem is currently mounted on /sys/fs/cgroup.

When the actual script is running, I see entries like this

Temporary failure resolving 'security.ubuntu.com'

I tried running the virt-customize with the -v -x debug flags as well as with these settings enabled

export LIBGUESTFS_BACKEND=direct
export LIBGUESTFS_DEBUG=1
export LIBGUESTFS_TRACE=1

Asking AI, it suggested to disable some sysctl setings. But that didn't work.

sysctl -w kernel.apparmor_restrict_unprivileged_userns=0

I tried changing the /etc/resolv.conf and the /etc/systemd/resolved.conf but to no avail...

Has anyone else experienced this? Do you you have some good tips and tricks on changing qcow files?

does `ufw` use `nftables` directly or indirectly via `iptables-nft`? https://askubuntu.com/questions/1562803/does-ufw-use-nftables-directly-or-indirectly-via-iptables-nft

I use ufw on ubuntu 22.04 and I've noticed that iptables -L -v -n -x and nft list ruleset both show the same rules.

Here is what I have

# ufw --version
ufw 0.36.1
Copyright 2008-2021 Canonical Ltd.
# iptables -V
iptables v1.8.7 (nf_tables)
# nft -v
nftables v1.0.2 (Lester Gooch)

I'm trying to understand, does ufw use nftables directly or does it use iptables and rely on iptables-nft to use nftables ? Like trying to understand if ufw has been converted to be nftables native and it is creating these duplicate rules itself or if ufw doesn't even know nftables exists at all and iptables-nft allows ufw to transparently use nftables?

Does the answer change based on the version of ufw in use?

I can't use my usb to hdmi adapter in ubuntu 22.04 (534d:6021 MacroSilicon VGA Display Adapter) https://askubuntu.com/questions/1488474/i-cant-use-my-usb-to-hdmi-adapter-in-ubuntu-22-04-534d6021-macrosilicon-vga-d

I have 534d:6021 MacroSilicon VGA Display Adapter which I want to connect my third screen through my usb 3 port. However it has only windows drivers. How can I setup this adapter with a suitable driver on my ubuntu 22.04.

USB 534d:6021 »
/ 03-00-00  MacroSilicon    VGA Display Adapter cdrom   uas, usb_storage    detected 

this is the output of hw-probe.

Ubuntu 22.04 remote desktop headless? https://askubuntu.com/questions/1407444/ubuntu-22-04-remote-desktop-headless

I just installed Ubuntu 22.04 LTS and was delighted to see that a remote desktop server is built in and supports MS RDP in addition to VNC. It has some quirks related to the password, which I found out about on this post: 22.04 - Remote Desktop Sharing authentication password changes every reboot

I am hoping to have remote desktop available on boot, without logging in, or if it uses auto-login it keeps the password, so that I can run the system headless and RDP/VNC into it. It looks like gnome-remote-desktop runs as a user service, not a system service, so it's not active unless the user logs in. And it starts before the keyring is unlocked, so it creates a new password every time it starts. It seems like there are many ways to get around these issue, but I'm not sure what's the best route or even if any/all of these are possible:

  1. Continue using auto-login so that remote desktop can run as a user service but somehow fix it so that it keeps the same password (ideally without disabling keyring completely).

  2. Disable the built-in remote desktop feature and install some other RDP/VNC server and manually configure it, but would that conflict with the built-in one? Not sure.

  3. Is it possible to convert the gnome-remote-desktop user service to a system service? And if so, where would it store the password if not in the user keyring? Is this even an option at all?

  4. Something else?!

Would love any suggestions. Thanks.

Touchpad isn't working on Ubuntu 20.04 https://askubuntu.com/questions/1307306/touchpad-isnt-working-on-ubuntu-20-04

I've recently bought a new laptop (Dell Venue 11 Pro), which can also be turned into a tablet with a removable keyboard and touchpad.

However, the touchpad isn't working and also the cursor is not shown. I have to use the touch screen for all of my work.

How do i disable Logitech G430 sidetone/mic monitoring/listening? https://askubuntu.com/questions/1145161/how-do-i-disable-logitech-g430-sidetone-mic-monitoring-listening

On windows I got to Settings then sounds, then recording, then advanced, then toggle listen OFF. Then that works and makes it so I cant hear my self.

Tried running the logitech gaming software with wine no success and there is no loopback module running.

Kernel: 4.19.36-1-MANJARO OS: Manjaro Linux x86_64

How to get Canon Pixma MG3660 to scan? https://askubuntu.com/questions/1089816/how-to-get-canon-pixma-mg3660-to-scan

I have searched through all the advice and followed all the steps.
But I can't get the printer to work without problems.
But the scanner has proved impossible to get to work.
After many hours of trying, I have decided that the best thing to do is use a skip bin and find an all-in-one that will actually be an all-in-one.

Could you please advise as to which brand and model.
Canon was just a complete waste of money and their support a joke.

Change proccess session https://askubuntu.com/questions/929610/change-proccess-session

Lets say I have a process which has session id 10030, Is there any way to remove the current process from this session and assign it to another? Or at least remove from this session? I've read this:
The session's ID is the same as the pid of the process that created the session through the setsid() system call. That process is known as the session leader for that session group. All of that process's descendants are then members of that session unless they specifically remove themselves from it.

But unfortunately I could not found how "they specifically remove themselves from it" can be done. Hope you can help. thanks.

Looking for way to transcribe audio files into text https://askubuntu.com/questions/809166/looking-for-way-to-transcribe-audio-files-into-text

I take a lot of memos by recoding my voice using my Android smartphone. The recordings can be a quick note, or a long dictation, so they vary a lot in size. Depending on the app I use, I the audio is saved as either a WAV or MP3 file.

What I want to do is take these voice memos and dictations ans convert them into text files.

I found this method that theoretically uses pavucontrol to pipe audio playback into Google Chrome's voice to text API, but I can't get it to work. I've followed the instructions and don't get any errors, I just don't see any text appear in the Chrome interface. In any case, it's not much better than holding my phone up to my laptop microphone. I was hoping for something where I wouldn't necessarily have to hear the audio as it was being converted to text, as I might do this with my laptop while I'm out at a coffee shop or something.

Ideally, there would be software where I could load a batch of sound files, and it would output a batch of text files, one for each audio file.

Does any software or method for this exist on Ubuntu?

How to spoof a USB device's Product and Vendor ID? https://askubuntu.com/questions/583206/how-to-spoof-a-usb-devices-product-and-vendor-id

Background to the problem

I have a "Canoscan Lide 120" scanner which is by all accounts a minor upgrade to "Canoscan Lide 110" (Same chipset, same specifications, etc.). The device driver for "Lide 120" is not available yet and the scanner is not yet supported by sane backend. Adding product and vendor ID of "Lide 120" to the sane backend does not help in detecting the scanner by the scanner applications.

The problem

Is there any way I can make my computer 'feel' as if it is connected to a "Lide 110" instead of a "Lide 120" by spoofing the USB product ID and vendor ID, so that I could use the driver for "Lide 110" with "Lide 120" ?

Conditions

  • I am on ubuntu 12.04

  • I do not wish to recompile kernel modules for the same and I am a non-programmer.

So folks, how do we spoof USB vendor and product IDs in ubuntu ?

How to print multiple copies of an image on a single page https://askubuntu.com/questions/433236/how-to-print-multiple-copies-of-an-image-on-a-single-page

I have an image, about 300x300 pixels large. I want to print as many copies as possible on a single page (I am planning to cut them apart with scissors afterwards).

Is there a way to do this? Is there a way to generate a PDF with copies (without opening something like gimp and manually doing copy-paste work).

How to close notifications with the keyboard? https://askubuntu.com/questions/117600/how-to-close-notifications-with-the-keyboard

my problem is that when I insert a drive (HDD partition, DVD etc.) a notification appears, which has a unlimited duration.

Clicking somewhere (except the options) will close this notification, but it is bothersome that I always have to use the mouse.

Is there a way to close these notifications with the keyboard or to set a duration?