I've been experiencing a very weird issue and googling isn't turning up anything. I've reported the behavior to AMD multiple times but got no response.
What will happen, is that sometimes when waking my monitor from sleep Windows will have changed from my monitor's native resolution and refresh rate to 1280*1024 60Hz. It will not change back unless I disconnect the monitor from the computer or reset the driver. Even times when I wake the monitor and it is still proper resolution, open windows have been moved around and resized. Other times I've walked by my computer while idle, the screen has turned on staying blank and going back to sleep. I suspect this is related.
I first started to notice this with my previous AMD card beginning with driver stack 20.11.2 (November WHQL release for 6000 series). I rolled back and had no issue. Eventually I acquired the 6800 and had no choice but to use 20.11.2 stack. Ever since then with each new driver revision the problem persists and I'm not sure what I can do.
Environment:
Windows 10 20H2
AMD Reference 6800
LG 34GK950F (Native 3440*1440 144Hz connected over DisplayPort)
If anyone has any suggestions it would be very appreciated.