SUMMARY Every now and again, kwin will exit with the following errors as seen in the journal: ``` kwin_wayland_wrapper[1691]: error in client communication (pid 2110) kwin_wayland_wrapper[1691]: NULL object received on non-nullable type, message set_minimized_geometry(ouuuu) plasmashell[2110]: wl_display@1: error 1: invalid arguments for org_kde_plasma_window@45.set_minimized_geometry ``` It happens randomly when hovering panels. I've reproduced it on 3 different machines. I'm not sure if it's specifically icons on a task manager but it sure happens a lot. STEPS TO REPRODUCE 1. Hover a plasma desktop panel. OBSERVED RESULT It will sometimes randomly generate that error and exit. EXPECTED RESULT Not exit and continue like normal. SOFTWARE/OS VERSIONS Linux: Arch Linux KDE Plasma Version: 5.26.5 KDE Frameworks Version: 5.101.0 Qt Version: 5.15.8 ADDITIONAL INFORMATION Not sure if related but I get this error whenever a tooltip appear: `plasmashell[9591]: kf.plasma.quick: Couldn't create KWindowShadow for ToolTipDialog(0x55b5e7a92ca0)`
Can you reproduce it when using basic render loop? Type "plasma renderer" in krunner, select "basic" render loop, and restart plasmashell
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(In reply to Vlad Zahorodnii from comment #1) > Can you reproduce it when using basic render loop? Type "plasma renderer" in > krunner, select "basic" render loop, and restart plasmashell I'll test it out. It's a bit random so it'll take a few days. Also I'll add that it doesn't happen only on icons on a task manager.
So far I can't reproduce it with the basic renderer loop.
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Still not happening with basic renderer loop.
Great! Then we know what it is. Unfortunately, we cannot fix it in Qt 5 lifetime.. We tried various fixes, but they didn't work. To be fixed with Qt 6. In meanwhile, use basic render loop, but there is a gotcha, see the duplicate bug report. *** This bug has been marked as a duplicate of bug 447717 ***