Icons from panel keep dissapearing

darklight · March 13, 2024, 7:17am

Hi, yesterday I upgraded my system together with KDE and since then I have a problem with icons in a panel disappearing together with when alt-tabbing i don’t see a preview of the app. Maybe there are more bugs i have not found yet. When using wayland its even worse, when alt-tabbing the whole desktop environment restarts for example, so i switched to x11 where only the bugs described above are present. I messed up the upgrade (PC shut down during upgrade) and the system didn’t even want to boot at start. The problem was with root partition having different linux kernel than EFI, after I fixed that, the graphical interface didn’t want to load but after reinstalling the packages it started to work, not sure if that’s relevant though. Has anyone encountered this?

Here are some information about my system, not sure if anything else is necessary:
KDE Plasma version: 6.0.1
KDE Frameworks version: 6.0.0
Qt version: 6.6.2
Kernel version: 6.7.9-arch-1-1 (64-bit)
Graphics Platform: X11
Graphics: Nvidia Geforce RTX 2060/PCIe/SSE2

$ dmesg | grep -i nvidia
[    0.000000] Command line: initrd=\023d6c1020cc451eb0de453f924e6a68\6.7.9-arch1-1\initrd nvme_load=YES nowatchdog rw root=UUID=55f69e10-d26c-4d37-aba6-97445a775e70 nvidia-drm.modeset=1 systemd.machine_id=023d6c1020cc451eb0de453f924e6a68
[    0.036673] Kernel command line: initrd=\023d6c1020cc451eb0de453f924e6a68\6.7.9-arch1-1\initrd nvme_load=YES nowatchdog rw root=UUID=55f69e10-d26c-4d37-aba6-97445a775e70 nvidia-drm.modeset=1 systemd.machine_id=023d6c1020cc451eb0de453f924e6a68
[    1.475601] nvidia: module license 'NVIDIA' taints kernel.
[    1.475613] nvidia: module license taints kernel.
[    2.039991] nvidia-nvlink: Nvlink Core is being initialized, major device number 240
[    2.042019] nvidia 0000:01:00.0: vgaarb: VGA decodes changed: olddecodes=io+mem,decodes=none:owns=none
[    2.092764] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  550.54.14  Thu Feb 22 01:44:30 UTC 2024
[    2.135364] nvidia_uvm: module uses symbols nvUvmInterfaceDisableAccessCntr from proprietary module nvidia, inheriting taint.
[    2.140569] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms  550.54.14  Thu Feb 22 01:25:25 UTC 2024
[    2.293998] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver
[    2.294114] nvidia-uvm: Loaded the UVM driver, major device number 238.
[    3.013605] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[    3.013899] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[    3.016025] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:01:00.0 on minor 0
[    4.935725] nvidia-gpu 0000:01:00.3: enabling device (0000 -> 0002)
[    4.943240] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[    5.078241] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[    5.431030] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.1/0000:01:00.1/sound/card0/input16
[    5.431126] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.1/0000:01:00.1/sound/card0/input17
[    5.431212] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.1/0000:01:00.1/sound/card0/input18
[    5.431320] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.1/0000:01:00.1/sound/card0/input19
[    6.008136] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[    6.109631] nvidia-gpu 0000:01:00.3: i2c timeout error e0000000
[    8.497628] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[    8.975738] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[    9.889727] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[   23.443044] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[   23.909725] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[   29.114110] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[   29.118284] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  110.989548] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  111.022922] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  111.976228] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  112.086610] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  112.898093] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  113.816536] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  124.218743] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  124.222617] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  125.174090] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  126.909673] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  126.912442] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  127.091238] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  128.027251] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  147.320957] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  147.324114] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  148.268482] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  148.470340] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  149.280189] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  150.214307] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  161.834105] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  162.275641] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  167.145210] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  167.149661] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  196.248762] [drm:drm_new_set_master] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[  196.248885] [drm:drm_new_set_master] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[  196.653054] [drm:drm_new_set_master] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[  196.653177] [drm:drm_new_set_master] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[  196.813862] [drm:drm_new_set_master] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[  196.813958] [drm:drm_new_set_master] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[  270.512134] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  270.527288] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  273.725857] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  273.729395] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  273.920034] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  322.331165] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  322.584236] [drm:drm_new_set_master] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[  840.310714] nvidia-modeset: WARNING: GPU:0: AU Optronics Corporation (DP-2): G-SYNC Compatible: EDID min refresh rate invalid, disabling G-SYNC Compatible.
[  840.453718] [drm:drm_new_set_master] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership

d-air1 · March 13, 2024, 11:44am

Sorry the problem you are describing is confusing me a bit. Is the problem that icons are disappearing from the panel’s task manager or that previews are not shown when hovering over the icons in the panel’s task manager or both?

d-air1 · March 13, 2024, 11:51am

There is a bug for pinned icons not being remembered upon reboot https://bugs.kde.org/show_bug.cgi?id=483083. If the bug is about the previews not showing or in my case sometimes showing and other times taking a while to eventually show then that might be https://bugs.kde.org/show_bug.cgi?id=477478

LinuxGaming312 · March 13, 2024, 12:29pm

You might be new with arch linux so I will give you some advice,

DO NOT UPDATE.

Never update!

Updates in arch 100% break your system, they are not a stable distribution whatsoever, they just keep pushing the latest packages regardless of how they work!

darklight · March 13, 2024, 1:36pm

Should’ve been more clear. 2 bugs I’ve encountered so far.
1, When hovering over panel, icons disappear.
2, When alt-tabbing the preview doesn’t show
I am not able to screenshot the 2nd state, but these are the icons:

d-air1 · March 13, 2024, 1:42pm

Which task switcher are you using? I believe the default is Thumbnail Grid. Can you try creating a new user and seeing if the issue still happens. I haven’t seen any reports of these two problems yet, so I’m tempted to believe something got messed up with your config files.

darklight · March 13, 2024, 1:54pm

Yes I am using Thumbnail Grid. I tried creating a new user and indeed both, wayland and x11 seem to work smoothly. I’ve tried resetting to default values here, but doesn’t seem to help.

d-air1 · March 13, 2024, 1:59pm

Alright, so if the new user works then it is definitely an issue with your config files.

I was thinking more along the lines that your config files got corrupted when this happened, so resetting to defaults wouldn’t help with corrupted files. Something could have been performing some actions with those files when the shutdown happened or some kind of filesystem error could have happened. If you don’t want to just migrate your files to the new user then I would recommend trying to delete the relevant configurations files and then reboot and allow those files to be recreated.

I’ll see if I can hunt down what files are relevant to the task switcher.

misanthrope · March 14, 2024, 1:03am

I’m curious to learn what you discover. After deleting my Plasma5/Qt5 orphans, I’m experiencing the same “bugs” as the OP. Prior to doing that, it worked smoothly.

d-air1 · March 14, 2024, 4:21am

Sorry for the delay. There was power outage for a few hours and took a while to come back to this. The file that contains the settings for the task switcher is $HOME/.config/kwinrc and the file which controls panel and desktop settings is $HOME/.config/plasma-org.kde.plasma.desktop-appletsrc

darklight · March 14, 2024, 7:19am

Am I fine just to delete those and reboot? Thanks for your help, really appreciate it!

ethanfloy · March 14, 2024, 9:41am

Explain it a lit more.

thefrog · March 14, 2024, 10:27am

Please don’t go telling people not to update their Arch Distro.

This is very incorrect. I have been using Arch for years and rarely has an update broken things. While KDE’s did do some dumb things most of these were known. Such as the decision to force everyone to start using Wayland as default. Ultimately its the users responsibility to know how to manage and use the system they choose.

d-air1 · March 14, 2024, 3:23pm

Yeah, you will lose whatever settings were in there and have to redo them, but should remove any bad config pertaining to the task switcher and the panels / desktop widgets. Although I could have missed a file somewhere.

darklight · March 14, 2024, 3:57pm

Yeah, the issues still persist even after the deletion of the mentioned configs.

d-air1 · March 14, 2024, 4:00pm

I see, perhaps there is some other config file that also effects it that I was not able to find. The way I went about finding the files was to search on the command line for files that had been modified in the last minute on my system. I would then change something in the relevant section of system settings and perform the search. However, I figure this wouldn’t find files that were already corrupted, but did not change when any settings were changed. These are the files that I am probably missing.

misanthrope · March 15, 2024, 12:52am

Oddly, after updating earlier today and a reboot, this problem finally disappeared for me. I did not delete either of those files, it seems related to the updates on Arch.

darklight · March 15, 2024, 7:03am

hmm, interesting I’ve tried updating as well, didn’t help but I’ve got these errors during update, it might do something with that.

misanthrope · March 15, 2024, 2:18pm

I’m traveling for work and will check when I’m back home to see if I can figure anything else out.