SUMMARY After updating to 5.26.0 on both my Arch Linux and Gentoo installs, apps are no longer displayed when started. I suspect the culprit is either kwin and/or plasmashell because the issue started to occur as soon as I restarted both (I have a keyboard shortcut which triggers a script that runs 'kwin_x11 --replace ; plasmashell --replace'). It occurs with any app (Ark, Dolphin, Firefox, Kate, Kitty...). Logging out or rebooting doesn't make any difference. STEPS TO REPRODUCE 1. After updating to 5.26.0 on Arch or Gentoo, open any program OBSERVED RESULT 1. The apps icons appear in the Icons-only Task Manager applet but the apps aren't displayed on the screen. I'm still seeing my wallpaper, right clicking displays the desktop contextual menu. Alt+tab shows the apps in the list. EXPECTED RESULT The apps are displayed normally. SOFTWARE/OS VERSIONS - Linux/KDE Plasma: Arch Linux / Gentoo - Display Server : X11 - NVIDIA drivers version: 515.76-5 (Arch Linux // 515.65.01 (Gentoo) - KDE Plasma Version: 5.26.0 -KDE Frameworks Version: 5.99.0 - Qt Version: 5.15.6+kde+r177-1 -- 6.4.0-1 (Arch Linux) // 5.15.5 (Gentoo) ADDITIONAL INFORMATION Couldn't provide a video to showcase the issue since any app wouldn't be rendered so I couldn't start SimpleScreenRecorder. Couldn't use my mobile phone at that time, sorry. Now I realize I should have created a new user from TTY to see if that was an issue with my Plasma settings. Maybe I'll do if nobody can reproduce. I downgraded to 5.25.5 on both distros and the issue is solved.
Created attachment 152712 [details] Apps not displayed Issue reproduced on an Arch Linux VM. I'm launching the apps via Krunner but it's exactly the same if I launch them via the kickoff menu applet.
Did you downgrade everything including the NVIDIA driver, or just the Plasma packages? I ask because there is a major NVIDIA driver regression with 515.76, so I would be interested in knowing if the issue persists with version 515.76 of the NVIDIA driver plus version 5.25.5 or KWin.
I've just tried with a fresh new user in my Arch Linux VM and couldn't reproduce, no issue on 5.26. So I guess that's an issue with my main user settings. Any idea is appreciated.
(In reply to Nate Graham from comment #2) > Did you downgrade everything including the NVIDIA driver, or just the Plasma > packages? I ask because there is a major NVIDIA driver regression with > 515.76, so I would be interested in knowing if the issue persists with > version 515.76 of the NVIDIA driver plus version 5.25.5 or KWin. I don't have any nvidia drivers installed on the Arch VM and I'm having the issue so it's not nvidia. And considering I'm not having the issue with a new user, I guess it's an issue with my main user settings.
Weird. Can you stash ~/.config/kwinrc and restart kwin? i.e. ``` mv ~/.config/kwinrc ~ systemctl restart --user plasma-kwin_x11 ``` are windows shown after that? If so, please attach your kwinrc then
(In reply to Vlad Zahorodnii from comment #5) > Weird. Can you stash ~/.config/kwinrc and restart kwin? i.e. > > ``` > mv ~/.config/kwinrc ~ > systemctl restart --user plasma-kwin_x11 > ``` > > are windows shown after that? If so, please attach your kwinrc then Thank you, I found the culprit. I'm using Bismuth (https://github.com/Bismuth-Forge/bismuth). " mv ~/.config/kwinrc mv ~/.config/kwinrc.bak " solved the problem and also disabled Bismuth as expected .I tried to enable Bismuth tiling again in System Settings and the problem came back. I guess it'll need to be updated to work with 5.26.
> "mv ~/.config/kwinrc mv ~/.config/kwinrc.bak" "mv ~/.config/kwinrc ~/.config/kwinrc.bak" sorry, typo.
Thanks!
> I guess it'll need to be updated to work with 5.26. Never mind, I'm silly. I was deliberately using Bismuth version 3.1.2 because I was experiencing tiling issues with some apps with 3.1.3 and 3.1.4. I've just updated to 3.1.4 and I don't have the issue with Bismuth enabled anymore, even on 5.26. Apologies for wasting your time.