Periodically on resume (from suspend) I encounter a screen image distortion chaos: display is mostly blacked, shaking and blinking with fragments of windows, some windows are upside down, no chance to enter command or focusing on some window.
Had to only reboot, which helps but for me, with a programmer laptop for remote work, each reboot/restart is quite undesirable and painful: 1) all activated virtual environments are disrupted; 2) all docker containers are disrupted with lost of cached data structures (gigabytes in size) - losing extraction/loading/transformation phase in ETL workflow.
I also heard about nvidia flipping setting could potentially get in a way: but switching it on/off does not help.
yes you can enable the compositor again, by pressing the same shortcut: alt + shift + f12 …now go to system settings/ compositor and uncheck 'allow applications to block compositing`, click apply, just in case reboot and try again
After adding Device section in xconfig file and adding kwin.sh - the GUI does not load on reboot.
When switching to 2nd TTY on boot: startx (as well as sddm) fails with Unable to connect to X server ... startplasma_x11 fails with $DISPLAY is not set ...
Tried mhwd -a pci nonfree 0300 (with reinstalling nvidia-utils) - did not help.
The only startplasma_wayland allowed me to load GUI but that seems a limited workaround (lost/absent functionality/settings is clearly seen when opening nvidia-settings window)