Monitor keeps randomly going blank and coming back on
by Red Squirrel from LinuxQuestions.org on (#6F2DF)
I was messing around with dos box, and went full screen, and it completely screwed up all of my displays and basically mirrored them and all my icons and windows ended up all over the place. Made a pretty big mess.
Anyway I managed to fix all of this, but now my second monitor keeps flickering. It will just go black for like 5 seconds and then come back. It was not doing this before this incident with going full screen, so I can't see how it would be a cable or something.
There is nothing in dmesg when this happens.
How would I even begin to start troubleshooting this? For what it's worth I made sure everything is updated to latest but it's still doing it. In fact it got more aggressive now, where it's basically unusable.
OS is Linux Mint 20.1 and GPU is [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev e7) (I think it's the 580 but I don't recall 100%)
Anyway I managed to fix all of this, but now my second monitor keeps flickering. It will just go black for like 5 seconds and then come back. It was not doing this before this incident with going full screen, so I can't see how it would be a cable or something.
There is nothing in dmesg when this happens.
How would I even begin to start troubleshooting this? For what it's worth I made sure everything is updated to latest but it's still doing it. In fact it got more aggressive now, where it's basically unusable.
OS is Linux Mint 20.1 and GPU is [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev e7) (I think it's the 580 but I don't recall 100%)