With the newest update for NVIDIA GPUs installed after each suspend&resuming procedure (the issue’s sucessfully reproduced several times, and it happens everytime I wake PC from sleep) the whole screen fills up with artifacts of the desktop underneath the built-in KDE lock screen (I refuse to use KDE integrated login manager sddm since it primarily caused a serious failure of my computer with NVIDIA proprietary drivers… Though, I didn’t report it, and I don’t know whether the bug exists or not any longer…).
The issue is solved temporarily until another suspend by switching to any virtual console and switching back to the one with X11 session running. However, it may take a few attempts before a sucessfull fix.
It’s worth mentioning that starting X session with startx – -logverbose 6 not only make a log file include as much relevant information, but also fixes the bug.
So the log file may be less informative in this case.
I hope it helps solve the issue!
nvidia-bug-report.log.gz (115 KB)