[Solved by going to X11]
I am working with my Debian 12 system and suddenly the whole screen goes blank and comes right back. I am not sure what triggers it, it seems to happen when I am exiting a program, I think when It comes back any program I had running is gone now. This is very intermittent and does not happen very often.
Here as a start have a neofetch:
OS: Debian GNU/Linux 12 (bookworm) x86_64
Host: VivoBook_ASUSLaptop S5402ZA_S5402ZA 1.0
Kernel: 6.1.0-11-amd64
Uptime: 12 hours, 2 mins
Packages: 2361 (dpkg)
Shell: bash 5.2.15
Resolution: 2880x1800
DE: Plasma 5.27.5
WM: kwin
WM Theme: plastik
Theme: [Plasma], Breeze [GTK2/3]
Icons: [Plasma], breeze-dark [GTK2/3]
Terminal: konsole
Terminal Font: Hack 19
CPU: 12th Gen Intel i7-12700H (20) @ 4.600GHz
GPU: Intel Alder Lake-P
Memory: 3406MiB / 11577MiB
I did journalctl -b - there is a crazy amount of detail in there.
If there is anything specific I can do, please let me know - I am more than a noob, but a lot of the time I only know just enough to be dangerous.
Thanks!
I can't tell you why but it seems like plasma crashed (-> screen black and all opened programs gone) and restarted (-> came back). That's what I can tell from your description. In your logs you can look for errors from plasma, kwin and maybe something with the gpu driver.