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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"

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:

Even a hello world window may consume more than 100 mb of memory
One app was reported to have a 3 fold memory increase after switching from GTK3 to GTK4.

Is there any workaround?

grub-pc package upgrade

https://askubuntu.com/questions/1566196/grub-pc-package-upgrade

I am updating Ubuntu. I get to the point of the grub-pc package and I see this:

enter image description here

According to this question, the best choice is /dev/sda

So I leave the red square where it is to select /dev/sda.

Then hit <enter>

This is the next thing I see:

enter image description here

This confused me because I thought I did select to install GRUB.

Hitting <enter> here takes me back to the first image.

What do I do?

Numpad Streamdeck Configuration

https://askubuntu.com/questions/1566195/numpad-streamdeck-configuration

How to utilize the numpad on the keyboard as a local stream deck where it launches apps and services when the numlock is off?

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

Paste not working into a 26.04 VM [closed]

https://askubuntu.com/questions/1566191/paste-not-working-into-a-26-04-vm

I've just installed 26.04 under VMware Workstation on my Windows 11 desktop. However, pasting from the host into the VM isn't working. I see plenty of historical issues, going back 15 years, where pasting into a Wayland UI isn't working correctly, but I really don't see much in terms of actual fixes.

Given that 26.04 is now GA, is this something that's likely to be fixed soon? It seems nuts that this is such a widespread problem after all this time.

Yes, I understand that I could work around this by switching to KDE or similar. But that seems to be regressing rather than fixing the problem.

Oops, something has gone wrong. Please report a bug in Launchpad [closed]

https://askubuntu.com/questions/1566188/oops-something-has-gone-wrong-please-report-a-bug-in-launchpad

Oops, something has gone wrong. Please report a bug in Launchpad.

System Settings Ubuntu Desktop:

Why at the "/etc/apt/sources.list.d" directory the "google-chrome.list" file does not exist? [duplicate]

https://askubuntu.com/questions/1566186/why-at-the-etc-apt-sources-list-d-directory-the-google-chrome-list-file-doe

For a laptop with Ubuntu 24.04.4 LTS just installed at April 19 was installed Google Chrome as follows:

sudo apt install ./google-chrome-stable_current_amd64.deb

Where the .deb file was download from the official Google Chrome page. That approach is always applied to any Debian/Ubuntu distro

In this laptop when the sudo apt update command is executed appears at the end:

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
13 packages can be upgraded. Run 'apt list --upgradable' to see them.
N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://dl.google.com/linux/chrome-stable/deb stable InRelease' doesn't support architecture 'i386'

I did do a research in the web and I found the following tutorial:

Fixing Repository 'http://repo.vivaldi.com/stable/deb stable InRelease' Doesn't Support Architecture 'i386'

I know it is a simple note and is possible fix it by editing the following file:

/etc/apt/sources.list.d/vivaldi.list

Of course, in my case is the google-chrome.list file

Reason of this post

In the /etc/apt/sources.list.d/ directory only exists the following files

google-chrome.sources
ubuntu.sources
ubuntu.sources.curtin.orig

Observe there is none .list files

In an old machine (being 24.04.4 LTS too) in the same directory appears:

brave-browser-release.list
google-chrome.sources
ubuntu.sources
virtualbox.list
vscode.sources
google-chrome.list                 <---
opera-stable.list
ubuntu.sources.curtin.orig
vivaldi.list

Where appears the google-chrome.list file and it contains:

### THIS FILE IS AUTOMATICALLY CONFIGURED ###
# You may comment out this entry, but any other modifications may be lost.
deb [arch=amd64] https://dl.google.com/linux/chrome/deb/ stable main

Practically the same solution as the tutorial for Vivaldi as:

deb [arch=amd64] http://repo.vivaldi.com/stable/deb/ stable main

Question

Why the google-chrome.list file does not exist?

Should I create manually the google-chrome.list file and just copy/paste the content?

Seahorse no longer displays "Login" passwords (GNOME Passwords and Keys)

https://askubuntu.com/questions/1566184/seahorse-no-longer-displays-login-passwords-gnome-passwords-and-keys

I upgraded my computer from Ubuntu 25.10 to Ubuntu 26.04 LTS (running GNOME 50). I've noticed that when I open GNOME Passwords and Keys (also known as Seahorse), I can't see my "Login" passwords. The sidebar lists: "GnuPG keys" and "OpenSSH keys" under "Keys", and it lists "System Trust" under "Certificates", but the "Login" entry under "Passwords" simply is not displayed.

I have checked that login.keyring and user.keyring under ~/.local/share/keyrings/ exist, so that is not the issue.

Intel NUC 15 (LAPBC510) Internal Speaker And Mic Not Working After Reboot

https://askubuntu.com/questions/1566177/intel-nuc-15-lapbc510-internal-speaker-and-mic-not-working-after-reboot

I have an Intel NUC 15 (LAPBC510) laptop. Yesterday, before installing Ubuntu 26.04 on my system, I tried a live boot-up via USB. Everything worked fine when the operating system first started, but after logging out and logging back in, the built-in speakers and microphone stopped working. When I checked the settings menu, the speaker name appeared in the sound menu, but the microphone wasn't visible in the system! After installing on the SSD, the built-in speakers and microphone worked when the system first started, but the same problem occurred when I shut down and restarted the system.

I tried the steps in the link below to fix this, but the result was the same.

https://oneuptime.com/blog/post/2026-03-02-how-to-fix-audio-issues-no-sound-on-ubuntu/view

Video of the problem:

https://photos.app.goo.gl/x9iCfY7EXL2xa7MVA

By the way, the dmesg log regarding the audio drivers is below.

[    0.049671] software IO TLB: area num 8.
[    0.699094] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.729288] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[    0.729289] software IO TLB: mapped [mem 0x0000000040e20000-0x0000000044e20000] (64MB)
[    0.876073] integrity: Loaded X.509 cert 'Microsoft Corporation UEFI CA 2011: 13adbf4309bd82709c8cd54f316ed522988a1bd4'
[    0.876094] integrity: Loaded X.509 cert 'Microsoft Windows Production PCA 2011: a92902398e16c49778cd90f99e4f9ae17c55af53'
[    0.876116] integrity: Loaded X.509 cert 'Microsoft Corporation: Windows UEFI CA 2023: aefc5fbbbe055d8f8daa585473499417ab5a5272'
[    0.876133] integrity: Loaded X.509 cert 'Microsoft Option ROM UEFI CA 2023: 514fbf937fa46fb57bf07af8bed84b3b864b1711'
[    0.876149] integrity: Loaded X.509 cert 'Microsoft UEFI CA 2023: 81aa6b3244c935bce0d6628af39827421e32497d'
[    1.396267] usb 3-9: Product: Wireless Receiver
[    1.657776] input: Logitech Wireless Receiver Mouse as /devices/pci0000:00/0000:00:14.0/usb3/3-9/3-9:1.0/0003:046D:C542.0003/input/input8
[    1.657850] hid-generic 0003:046D:C542.0003: input,hidraw2: USB HID v1.11 Mouse [Logitech Wireless Receiver] on usb-0000:00:14.0-9/input0
[    4.647937] snd_soc_avs 0000:00:1f.3: SoundWire enabled on CannonLake+ platform, using SOF driver
[    4.709504] sof-audio-pci-intel-tgl 0000:00:1f.3: enabling device (0000 -> 0002)
[    4.709742] sof-audio-pci-intel-tgl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if 0x040100
[    4.723139] sof-audio-pci-intel-tgl 0000:00:1f.3: bound 0000:00:02.0 (ops intel_audio_component_bind_ops [i915])
[    4.730293] sof-audio-pci-intel-tgl 0000:00:1f.3: use msi interrupt mode
[    4.747605] sof-audio-pci-intel-tgl 0000:00:1f.3: hda codecs found, mask 4
[    4.747612] sof-audio-pci-intel-tgl 0000:00:1f.3: NHLT device BT(0) detected, ssp_mask 0x4
[    4.747614] sof-audio-pci-intel-tgl 0000:00:1f.3: BT link detected in NHLT tables: 0x4
[    4.747617] sof-audio-pci-intel-tgl 0000:00:1f.3: DMICs detected in NHLT tables: 4
[    4.750414] sof-audio-pci-intel-tgl 0000:00:1f.3: Firmware paths/files for ipc type 0:
[    4.750420] sof-audio-pci-intel-tgl 0000:00:1f.3:  Firmware file:     intel/sof/sof-tgl.ri
[    4.750422] sof-audio-pci-intel-tgl 0000:00:1f.3:  Topology file:     intel/sof-tplg/sof-tgl-rt711-rt1308-4ch.tplg
[    4.750948] sof-audio-pci-intel-tgl 0000:00:1f.3: Firmware info: version 2:2:0-57864
[    4.750952] sof-audio-pci-intel-tgl 0000:00:1f.3: Firmware: ABI 3:22:1 Kernel ABI 3:23:1
[    4.846758] sof-audio-pci-intel-tgl 0000:00:1f.3: Firmware info: version 2:2:0-57864
[    4.846765] sof-audio-pci-intel-tgl 0000:00:1f.3: Firmware: ABI 3:22:1 Kernel ABI 3:23:1
[    4.865760] sof-audio-pci-intel-tgl 0000:00:1f.3: loading topology: intel/sof-tplg/sof-tgl-rt711-rt1308-4ch.tplg
[    4.865830] sof-audio-pci-intel-tgl 0000:00:1f.3: Topology: ABI 3:22:1 Kernel ABI 3:23:1
[    4.866132] sof_sdw sof_sdw: ASoC: Parent card not yet available, widget card binding deferred
[    6.011289] input: sof-soundwire Headset Jack as /devices/pci0000:00/0000:00:1f.3/sof_sdw/sound/card0/input12
[    6.011365] input: sof-soundwire HDMI/DP,pcm=5 as /devices/pci0000:00/0000:00:1f.3/sof_sdw/sound/card0/input13
[    6.011467] input: sof-soundwire HDMI/DP,pcm=6 as /devices/pci0000:00/0000:00:1f.3/sof_sdw/sound/card0/input14
[    6.011533] input: sof-soundwire HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1f.3/sof_sdw/sound/card0/input15
[    6.011589] input: sof-soundwire HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1f.3/sof_sdw/sound/card0/input16

Multiple monitors with nVidia on Ubuntu 26.04

https://askubuntu.com/questions/1566175/multiple-monitors-with-nvidia-on-ubuntu-26-04

Anyone knows if problem with support for multiple monitors on Ubuntu 26.04 is going to be resolved since there is no backwards compatibility to X11 anymore.
I've checked release notes etc. and this supposed to be working but it's not :(

One example: I can't make OBS studio to work on second screen which is one of imperatives for me.

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.
attempting to use envycontrol to only use the dedicated GPU does not help, the crash remains the same.

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

Is there any other simple way of removing deb packages that were installed from non-Ubuntu (unofficial) sources?

99-pqc.conf override not being enforced in 26.04

https://askubuntu.com/questions/1566144/99-pqc-conf-override-not-being-enforced-in-26-04

I'm trying to limit ssh key exchanges to the two post-quantum secure algorithms in Ubuntu 26.04.

I've created the file /etc/ssh/sshd_config.d/99-pqc.conf and its permissions are the same as sshd_config. The content of the file is this:

# Post-quantum only SSH key exchange
KexAlgorithms mlkem768x25519-sha256,sntrup761x25519-sha512@openssh.com
# Log negotiated algorithms so we can audit what clients are actually using
LogLevel VERBOSE

When I restart ssh, the two pqc ciphers are at the head of the list but all the old, non post-quantum secure ones are still there.

Searches online yielded the advice that failure to enforce the override was often due to configuration conflicts between NetworkManager and systemd-networkd. However only NetworkManager is active so I don't think that's the source of the problem.

Any suggestions about where to go from here?

Update Error Kernel 6.17.0-22-generic on Ubuntu 24.04 LTS is causing initramfs boot failure!

https://askubuntu.com/questions/1566033/update-error-kernel-6-17-0-22-generic-on-ubuntu-24-04-lts-is-causing-initramfs-b

@ubuntu @canonical

Kernel 6.17.0-22-generic on Ubuntu 24.04 LTS is causing initramfs boot failure! System gets stuck in BusyBox emergency shell. Workaround: boot older kernel via GRUB Advanced Options. Please fix! Others affected too.

Ubuntu 25.10 Nvidia 580 not accelerated

https://askubuntu.com/questions/1565944/ubuntu-25-10-nvidia-580-not-accelerated

Ubuntu 25.10

Nvidia 580.126.09-0ubuntu0.25.10.2

Stable system. Latest Ubuntu. Latest Nvidia (from Additional Drivers).

Selecting the nvidia accelerated mode, no acceleration except for gnome-shell.

nvtop doesn't show any Nvidia activity.

Any ideas for what to check why other apps/processes aren't accelerated?

$ sudo lshw -c video

  *-display                 
       description: VGA compatible controller
       product: TigerLake-LP GT2 [Iris Xe Graphics]
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       logical name: /dev/fb0
       version: 01
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb
       configuration: depth=32 driver=i915 latency=0 mode=1920x1080 resolution=1920,1080 visual=truecolor xres=1920 yres=1080
       resources: iomemory:600-5ff iomemory:400-3ff irq:164 memory:6012000000-6012ffffff memory:4000000000-400fffffff ioport:5000(size=64) memory:c0000-dffff memory:4010000000-4016ffffff memory:4020000000-40ffffffff
  *-display
       description: 3D controller
       product: GP108M [GeForce MX330]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: iomemory:600-5ff iomemory:600-5ff irq:166 memory:61000000-61ffffff memory:6000000000-600fffffff memory:6010000000-6011ffffff ioport:4000(size=128) memory:62000000-6207ffff

$ sudo prime-select query

nvidia

$ nvidia-smi

Thu Apr 23 09:13:25 2026       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 580.126.09             Driver Version: 580.126.09     CUDA Version: 13.0     |
+-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|                                         |                        |               MIG M. |
|=========================================+========================+======================|
|   0  NVIDIA GeForce MX330           Off |   00000000:02:00.0 Off |                  N/A |
| N/A   42C    P8            N/A  / 5001W |       4MiB /   2048MiB |      0%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+

+-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI              PID   Type   Process name                        GPU Memory |
|        ID   ID                                                               Usage      |
|=========================================================================================|
|    0   N/A  N/A            4738      G   /usr/bin/gnome-shell                      0MiB |
+-----------------------------------------------------------------------------------------+

How can I drag and drop to re-order icons on the Ubuntu dock?

https://askubuntu.com/questions/1530024/how-can-i-drag-and-drop-to-re-order-icons-on-the-ubuntu-dock

I would like to be able to drag and drop icons in the dock to change their order, but I cannot. When I click and hold on an icon, then move my mouse somewhere else on the dock, a small "+" symbol appears at the base of my cursor and when I release my mouse button it is pinned to the dock.

I am using a new install of Ubuntu 24.04 with the dock as a panel, the applications button at the edge of the panel, and the applications button at the left edge instead of the right. I found some online posts talking about extensions I don't have installed that could cause problems with dragging and dropping, but those were centered around dragging and dropping doing nothing which isn't the same behavior. I also found some remarks about unlocking the dock, but I don't see anywhere to do that in Ubuntu's standard settings or GNOME extension settings and I also don't have a right click menu on the dock.

I'd be open to troubleshooting steps to provide more information if it's needed.

Searching for a gnome app/shell extension to convert units

https://askubuntu.com/questions/1484697/searching-for-a-gnome-app-shell-extension-to-convert-units

I am looking for an app or perhaps a shell extension that can convert all kinds of units to each other. It should preferably work in the search overview (that thing that comes up when you press SUPER), similar how the calculator app does. Calculator app: when you put in 40 * 20 it spits out 800 and copies it to the clipboard if you hit enter. The Extension/App: when you put in 40F to C, or simpler 40F C it spits out what 40°F is in Celsius. It doesn't need currencies, but it would of course be nice. Other examples include 4inch cm 6foot m 5lb kg

or something like that. Does anybody know of an app or a shell extension for this functionality?

(also I'm unsure if this is the right forum to post this to, please redirect me to a better place if it isn't)

Thanks in advance!

Also it needs to work in gnome 43, so this https://extensions.gnome.org/extension/122/unit-converter/ is out of the question, it seems great tho!

bootable usb ubuntu 22.04 stuck on "Welcome to GRUB"

https://askubuntu.com/questions/1440662/bootable-usb-ubuntu-22-04-stuck-on-welcome-to-grub

Have an old HP Pavilion DV7 without UEFI. Trying to install an Ubuntu 22.04 it stuck at the beginning of booting "Welcome to GRUB". Can somebody help with advice, or salvation.

Ubuntu not showing up in boot menu after first installation

https://askubuntu.com/questions/1281875/ubuntu-not-showing-up-in-boot-menu-after-first-installation

I just installed Ubuntu using a USB. Everything was fine and it installed and said that the computer needed to restart. After restarting, it booted straight to Windows. I tried opening the boot menu by pressing F12, and the only available option was to boot in Windows.

Picture of my boot priority order:

I have tried disabling SecureBoot and it's still not working. The version I installed was a 64-bit version of Ubuntu 20.04.1.

The download speed of apt-get update progressively becomes slow

https://askubuntu.com/questions/1131339/the-download-speed-of-apt-get-update-progressively-becomes-slow

My internet connection is perfect, and I had also tried using the best mirror for downloading the updates, yet apt-get update and apt-get upgrade are extremely slow- it gets stuck with "reading headers".

I've also tried disabling ipv6 system wide, by following the instructions here: Apt downloads very slow . Could this signify the behavior of some kind of a malware?

Even installing packages run extremely slow (when I run them as spt-get install). I tested out the speed with a virtual machine instance (which runs Ubuntu 16, while the system I'm talking about here runs Ubuntu 18), and the speed was fine- as usual. What could be causing this? Is it a sign of malware activity? I tried using rkhunter, and it wasn't very helpful.

The download speed usually starts of being fast, and then becomes progressively slow. Thus, when I keep cancelling the process with ctrl+c and rerunning the process, I'm able to get it updated easily. The initially logged speed is actually fine. But for some reason, it becomes slower over time.

This is where I'm stuck right now:

Hit:1 http://es-mirrors.evowise.com/ubuntu bionic InRelease
Hit:2 http://es-mirrors.evowise.com/ubuntu bionic-updates InRelease            
Hit:3 http://es-mirrors.evowise.com/ubuntu bionic-backports InRelease          
Hit:4 http://es-mirrors.evowise.com/ubuntu bionic-security InRelease           
Ign:5 http://dl.google.com/linux/chrome/deb stable InRelease                   
Get:6 https://dl.winehq.org/wine-builds/ubuntu bionic InRelease [6,257 B]      
Ign:7 http://dl.google.com/linux/talkplugin/deb stable InRelease               
Err:6 https://dl.winehq.org/wine-builds/ubuntu bionic InRelease                
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 76F1A20FF987672F
Hit:8 http://dl.google.com/linux/chrome/deb stable Release                     
Hit:9 http://ppa.launchpad.net/libreoffice/ppa/ubuntu bionic InRelease 
Hit:11 http://dl.google.com/linux/talkplugin/deb stable Release                
Hit:13 http://ppa.launchpad.net/mscore-ubuntu/mscore-stable/ubuntu bionic InRelease
Hit:14 http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu bionic InRelease
Hit:15 http://ppa.launchpad.net/webupd8team/atom/ubuntu bionic InRelease       
Hit:16 http://ppa.launchpad.net/wireshark-dev/stable/ubuntu bionic InRelease   
Get:17 http://es-mirrors.evowise.com/ubuntu bionic amd64 Contents (deb) [39.5 MB]
Get:17 http://es-mirrors.evowise.com/ubuntu bionic amd64 Contents (deb) [39.5 MB]
Get:17 http://es-mirrors.evowise.com/ubuntu bionic amd64 Contents (deb) [39.5 MB]
23% [17 Contents-amd64 10.2 MB/39.5 MB 26%]^C

And I had also checked to see if it was the issue of the server that is being connected. For that, I had tried downloading the same file from this path: es-mirrors.evowise.com/ubuntu/dists/bionic-updates/Contents-amd64.gz directly from the browser. Yes it was slow, but the speed was around 35 to 75 kbps. Not bad actually, for the 10kbps or 8kbps I get, in the terminal. Could this be caused by a malware? Or is there something broken, or some application interfering with the download process?

I'm still having this problem. The download speed goes down to a few kbps or even few bytes per second. I also tried apt-get clean and every other solution I could find. Please tell me what should I do. Thanks!

Seahorse does not offer the "decrypt file" menu item in Nautilus under Ubuntu 16.04

https://askubuntu.com/questions/816789/seahorse-does-not-offer-the-decrypt-file-menu-item-in-nautilus-under-ubuntu-16

I have recently installed a fresh ubuntu 16.04. I have also imported my PGP key (privat and public) in seahorse. However seahorse did not show the key and did not show the decrypt menu entry for encrypted files.

After looking around I "gpg --import" the privat and public key and was able to "gpg --decrypt" files. However, seahorse still did not show the key and did not offer the decrypt option in the file manager (despite seahorse-nautilus installed).

I then "gpg2 --import" my key, and now seahorse shows the key and offers the decrypt option in the file manager. However, wenn clicking this, it does not ask for the passphrase and instead tries to decrypt the file without passphrase and after a while says: "Could not decrypt file. Probably you are missing the corresponding key" (Or something like this, I am using the German language on my PC).

Is there a possibility to fix this and to use seahorse from the file manager again to decrypt files (as it worked with ubuntu 14)?

How to disable apt key checking for private repositories under Ubuntu 14.04?

https://askubuntu.com/questions/708902/how-to-disable-apt-key-checking-for-private-repositories-under-ubuntu-14-04

Under Ubuntu 14.04 I cannot get this to work.

Our PCI auditor told us we can not have direct outbound access to the Ubuntu repo's, so I mirror them with reprepro. Likewise, we do not have outbound access to keyserver.ubuntu.com.

I have tried adding each of the following to /etc/apt/apt.conf.d/99local:

APT::Get::AllowUnauthenticated "true";
APT{Ignore {"gpg-pubkey"; }};
APT { Get { AllowUnauthenticated "1"; }; };

And an "apt-get update" still returns, after reading the packages:

W: GPG error: hkp://sa1.dal.some-company.com trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 082BCA0181FE8E68
W: GPG error: hkp://sa1.dal.some-company.com trusty-backports InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 082BCA0181FE8E68
W: GPG error: hkp://sa1.dal.some-company.com trusty-security InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 082BCA0181FE8E68
W: GPG error: hkp://sa1.dal.some-company.com trusty-updates InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 082BCA0181FE8E68

How can get this to work? Nothing I've found in the documentation on how to disable key checking works.

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 ?

tail: inotify cannot be used, reverting to polling: Too many open files

https://askubuntu.com/questions/299689/tail-inotify-cannot-be-used-reverting-to-polling-too-many-open-files

When I try to tail -f catalina.out, I get the error:

tail: inotify cannot be used, reverting to polling: Too many open files

I tried the answer in this post: Too many open files - how to find the culprit

lsof | awk '{ print $2; }' | sort -rn | uniq -c | sort -rn | head

When I ran the above command, the output was

I don't see any process having 1024 files open. Isn't the number of files open 17,13,10,10,9? Or am I understanding it wrong? And all these were bash,sshd,apache2, tomcat had number 4.

I also did lsof | grep tail | wc -l which returned 20. These numbers aren't huge, so why does tail -f catalina.out fail?