SUMMARY STEPS TO REPRODUCE Open multiple apps and shutdown. I suggest doing this with Qt and GTK apps together. OBSERVED RESULT Currently, shutting down with applications opened seems to cause a race condition or something, where applications are closing and Plasma itself is also ending its processes. This causes some glitches like: window frame disappearing, the shadow of the window frame losing its alpha channel and displaying a black/white background and desktop freezing for some seconds. EXPECTED RESULT Maybe Plasma components shouldn't shutdown until applications are closed? In Windows, there is a smooth experience as if the user is closing a lot of windows at the same time. Also, there is a screen informing that some programs are blocking the shutdown and ask the user to force close them while agreeing that data will be lost. SOFTWARE/OS VERSIONS Operating System: Fedora Linux 35 KDE Plasma Version: 5.23.4 KDE Frameworks Version: 5.89.0 Qt Version: 5.15.2 Kernel Version: 5.15.14-200.fc35.x86_64 (64-bit) Graphics Platform: X11 Processors: 4 × Intel Core Processor (Skylake, IBRS) Memory: 3.8 GiB of RAM Graphics Processor: llvmpipe ADDITIONAL INFORMATION
> Graphics Processor: llvmpipe Are you in a VM? If so, does it reproduce on physical hardware?
This bug was reported against an outdated version of KWin. We have made many changes since the. If the issue persists in newer versions can you reopen the bug report updating the version number.