Question PC display won't turn back on after screen inactivity timeout. Event ID 6008: "The previous system shutdown at [time] on ‎[date] was unexpected"

[ANDREW3019]

My PC's display will not turn back on after I leave my computer for a while (30+ min?) and the display closes due to inactivity timeout. When I return to my PC, I click my mouse/keyboard to wake the display, and the display lights up for a second (backpanel lit, but display is still black), shows no signal, and the display turns off again. The PC is still running (RGB on, fans turning, fans actually turn faster for a few seconds when I press mouse/keyboard).
Unplugging/replugging/plugging into the motherboard the Display Port cables have no effect. I have 2 monitors but using either of them only does not work either. The only "fix" is to manually restart the PC using the hardware controls on the case. This doesn't seem to be a problem with the GPU hardware itself... I switched my GPU yesterday from a 1080 to a 3080, but the 1080 also had these problems, just more seldom (seems to happen every single time with the 3080).

Event viewer:

Device name AndrewsPC
Processor Intel(R) Core(TM) i5-8600K CPU @ 3.60GHz 3.60 GHz
Installed RAM 32.0 GB (31.9 GB usable)
System type 64-bit operating system, x64-based processor

Edition Windows 10 Pro
Version 21H1
Installed on ‎9/‎27/‎2020
OS build 19043.1706
Experience Windows Feature Experience Pack 120.2212.4170.0

Asus TUF 3080 12g
Maximus X Hero
RM750i

 

[rolli59]

I did have this issue in the past and gave up on solving it so first thing I do with all my computers is go into settings Power and sleep and set never shut down monitor.
There may be a fix but I gave up and it was really annoying.

 

[ANDREW3019]

I did have this issue in the past and gave up on solving it so first thing I do with all my computers is go into settings Power and sleep and set never shut down monitor.
There may be a fix but I gave up and it was really annoying.

What was the potential fix? or where can i find it

 

[rolli59]

What was the potential fix? or where can i find it

Maybe the last post here https://forums.tomshardware.com/thr...urning-off-display-due-to-inactivity.1883471/

 

[Botha Lissom]

could well be a failure to handle ACPI properly. look for ACPI errors. check which BIOS versions are available and which is most suitable. i just searched [fix problem acpi windows 10] and got some interesting results.