SUMMARY KMail crashes reproducibly for me whenever a file dialog is shown, but only for 2-5 times after I rebooted my PC, afterwards it's fine. I have the same problem with other KDE Applications an Firefox, but decided to file it here, because it's the most reproducible and most annoying to me. It seems to me this crash is strongly related to Wayland, because it didn't happen on X11. STEPS TO REPRODUCE 1. Freshly booted my system 2. Open KMail 3. Go to "File" -> "Open" OBSERVED RESULT KMail crashes with the attached backtrace. EXPECTED RESULT KMail doesn't crash and I can select a file to open. SOFTWARE/OS VERSIONS Operating System: openSUSE Tumbleweed 20230816 KDE Plasma Version: 5.27.7 KDE Frameworks Version: 5.108.0 Qt Version: 5.15.10 Kernel Version: 6.4.9-1-default (64-bit) Graphics Platform: Wayland Processors: 4 × Intel® Core™ i5-7300U CPU @ 2.60GHz Memory: 15.4 GiB of RAM Graphics Processor: Mesa Intel® HD Graphics 620 ADDITIONAL INFORMATION This might be irrelevant, but since it's unusual I'll mention it: I use an external 1080p monitor with my Thinkpad T470, which runs at 120Hz. The internal display is also used, but runs at 60Hz.
Created attachment 161058 [details] Backtrace of crash with KMail
Created attachment 161069 [details] QtCreator crash Captured a crash with QtCreator and a similar backtrace, see attached. I'm beginning to think this is either a Plasma bug, or a Qt bug. I'll update the fields accordingly
Clients crashing is a client problem, not a kwin problem. You can file one at Qt, though pragmatically 5.15 won't get fixed and I haven't seen this in 6.