*** If you're not sure this is actually a bug, instead post about it at https://discuss.kde.org If you're reporting a crash, attach a backtrace with debug symbols; see https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports Please remove this comment after reading and before submitting - thanks! *** SUMMARY STEPS TO REPRODUCE 1. Activate cube effect using plain color or skybox 2. Meta+c shortcut OBSERVED RESULT Effect doesn't show up, black screen, desktop resets EXPECTED RESULT Effect working as in Plasma 6.1.5 SOFTWARE/OS VERSIONS Linux/KDE Plasma: Manjaro unstable branch KDE Plasma Version: Plasma 6.2.0 KDE Frameworks Version: 6.6 Qt Version: 6.7.3 ADDITIONAL INFORMATION Happens on Wayland and X11 and Firefox crashes when this happens.
Can confirm, but can't upload backtrace
Works for me with 3 virtual desktops. Is there a special set of configurations options needed to trigger the crash?
The crash happens everytime not sometimes as the title says now. I'm using 3 virtual desktops too, rest is default. I did test on Intel only laptop and AMD Ryzen 5 7600X only desktop PC, both have the same problem. Looking at journalctl i see this everytime it happens on Wayland: "kernel: kwin_wayland[1156]: segfault at 3f800004 ip 000075085b573e2c sp 00007ffc185fcf90 error 4 in libQt6Quick3D.so.6.7.3[e7e2c,75085b4dc000+ca000] likely on CPU 11 (core 5, socket 0)" Should i "gdb kwin_wayland" to see what happens? Tried today and it's been hours and still black screen
Maybe has to with Nouveau? I have that. And also not "sometimes" but each time, here.
https://forum.endeavouros.com/t/update-of-oct-7-2024-breaks-desktop-cube-kde-plasma-for-me/61461
I suspect that it's a Qt 6.7.3 regression. - I can reproduce the crash on a dev machine with Qt 6.7.3 - but I cannot reproduce it on a dev machine running with Qt built from source from the dev branch
We also have crash reports from people running Plasma 6.1.5 + Qt 6.7.3
I have Qt 6.7.2, so if the Qt version is relevant here, that would explain why I couldn't reproduce it.
Runs with qt 6.8.0
Guess we'll just wait for 6.8.0 then
Manjaro unstable updated today with QT 6.8 and the cube works again. Don't know if it's related since KF 6.7 was updated too but Sound menu on Preferences works again the first time you open it.
It's an issue in Qt 6.7.3.
(In reply to Nate Graham from comment #12) > It's an issue in Qt 6.7.3. According to https://bugs.kde.org/show_bug.cgi?id=493116#c20 there will be no more 6.7.x releases. Is 6.8 also affected?
~Is 6.8 also affected?~ It's not as of the comments above. Sorry for the noise!
6.8.0 Successfully eradicated this bug. Please close this report fixed, and thank you!