Package: qtwayland5
Version: 5.15.2-3
Since I connected a new screen to my PC (and this may be unrelated) it sometimes happens that when I wake my PC from standby (with that other screen turned off before and after standby) plasma seems to have crashed:
- The wallpaper is the default one
- Desktop icons are gone
- Sometimes the lockscreen is the default one but sometimes it keeps my lockscreen (when I enter my password at the lockscreen I had to click on the password field or it didn't enter it)
- The panel at the bottom disappeared and when I click the Meta/Windows key nothing happens
- When I move windows like the konsole window, the window becomes invisible until it's at the new place
In system monitor it shows that plasmashell is running (started by systemd) and that startplasma-waylandsession is running (started by systemd->sddm->sddm-helper->startplasma-wayland->kwin_wayland)
I'm using Wayland on Debian11(stable)/KDE.
When I enter journalctrl -b it only shows very three entries for the day at the bottom like "systemd: Started konsole." and many for the previous day even though I had my computer running for quite a while today. (Note there's also a loss of bash history when using Wayland on Debian and I used to restore it from backups until this became too frequent. Wayland-KDE bugs really should get fixed.)
Please let me know if there's anything else I could run to investigate this. I usually try running killall plasmashell and kstart5 plasmashell to get it working again and if that doesn't work I have to end the session and log in again.
My bug report at KDE:
https://bugs.kde.org/show_bug.cgi?id=457996 (closed because Debian11 ships a version of KDE that's too old)
SE question with more details:
https://unix.stackexchange.com/q/714159/233262