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

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"

Andrew Shi 1

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

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Answer 1

Limitless Technology 39,931

Hi there,

One of the reasons why the Event ID 6008 can get triggered is if your system shut down unexpectedly. This can be due to one of the hardware components malfunctioning in your system. Try to clean the heat sink fan by removing the dirt.

There is a possibility that a certain software conflict could be causing this issue. For proper isolation, kindly verify the following queries:

Any recent changes made on the computer prior to the issue?
Have you tried performing a clean boot to eliminate software conflicts?
Have you tried running System File Checker to check for any file corruption?

I suggest you to refer the below link on how to perform System File Checker and check if it helps.

Use the System File Checker tool to repair missing or corrupted system files
https://support.microsoft.com/en-us/topic/use-the-system-file-checker-tool-to-repair-missing-or-corrupted-system-files-79aa86cb-ca52-166a-92a3-966e85d4094e

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--If the reply is helpful, please Upvote and Accept it as an answer–

Andrew Shi 1 Reputation point

2022-06-09T08:28:28.657+00:00
Any recent changes made on the computer prior to the issue?

No, it has happened sometimes before; however, I swapped my GPU and it happens every single time now.
Have you tried performing a clean boot to eliminate software conflicts?

Does this mean reinstalling the OS? I have uninstalled my GPU drivers using ddu and reinstalled but this didn't fix it.
Have you tried running System File Checker to check for any file corruption?

[==========================100.0%==========================] The restore operation completed successfully.
The operation completed successfully.

Windows Resource Protection found corrupt files and successfully repaired them.

2022-06-09 16:25:16, Info CSI 00000228 [SR] Repairing file \??\C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\OneDrive.lnk from store
2022-06-09 16:25:28, Info CSI 00000278 [SR] Repairing file \??\C:\WINDOWS\Microsoft.NET\Framework\v1.0.3705\mscormmc.dll from store
2022-06-09 16:25:30, Info CSI 0000028d [SR] Repairing file \??\C:\WINDOWS\Microsoft.NET\Framework\v1.0.3705\mscormmc.dll from store
2022-06-09 16:25:30, Info CSI 0000028e [SR] Repairing file \??\C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\OneDrive.lnk from store
2022-06-09 16:25:30, Info CSI 00000296 [SR] Verify and Repair Transaction completed. All files and registry keys listed in this transaction have been successfully repaired
Andrew Shi 1 Reputation point

2022-06-09T08:28:38.257+00:00

This feels more like a software issue than a hardware issue. I can use my PC for prolonged gaming and it works perfectly fine. I also changed the screen inactivity timeout to "Never" as a temporary fix (though this might be bad for the GPU/monitors) and trained a machine learning model overnight and my PC was perfectly fine in the morning.

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

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