Incredibly weird behavior on my main monitor:

[arios@meow.social]

Incredibly weird behavior on my main monitor:

Sometimes the image on it randomly begins to glitch (line pattern), then the screen dims and turns entirely black, despite the monitor still being on and "connected" on my PC. Only fix is to unplug it for a few minutes, then try again.

Started happening about a week ago, at first during an active session, but now also on bootup from standby. Anyone got an idea what could be causing this?

Monitor is an Acer XV340CK P, I'll try to get a video of this when it happens again