Question Primary Monitor defaults back to 60Hz after restart

[jeremy.cino]

Hey,

When I disable my monitor 1 (main), then re enable it, it defaults back to 60Hz (instead of 240Hz as I set it up). This happens on my primary monitor only, my secondary stays at 165Hz whatever I do.
This problem appeared after a series of electrical shutdowns in my neighborhood, something like 10-15 in 2h hours.
Everything worked fine for years, literally years.
I already tried to re install latest Nvidia drivers, and re installed monitor drivers just in case. I also tried swapping the cables on the GPU, same behavior.

More details about my setup:

SETUP 1 (Desktop):
Monitor 1 - Enabled - Primary
Monitor 2 - Enabled - Secondary
TV - Disabled

SETUP 2 (Bed):
Monitor 1 - Disabled
Monitor 2 - Disabled
TV - Enabled - Primary

I switch between these 2 using these 2 script that I trigger with a keyboard shortcut when I go to sleep, or go back to my desktop:

SCRIPT 1 (Desktop):
Enable-Display 1
Enable-Display 2
Set-DisplayPrimary 1
Disable-Display 3

SCRIPT 2 (Bed):
Enable-Display 3
Set-DisplayPrimary 3
Disable-Display 2
Disable-Display 1

It has been working perfectly fine for years. Not anymore, and I don't understand why.

Hardware:
GPU: RTX 3080 (ASUS TUF)
Monitor 1: AW2721D (Alienware)
Monitor 2: VG27AQ (ASUS)
TV: Q60A series (Samsung)

I could make it work with other scripts via NirCmd for example, or go back to use DisplayFusion, but I'd like to avoid that and keep using my basic simple scripts I have atm.
Plus, it clearly is a malfunction, something is wrong and I'd like to fix it.

Thanks a lot for reading, I hope someone can help !

 

[Lutfij]

I already tried to re install latest Nvidia drivers, and re installed monitor drivers just in case. I also tried swapping the cables on the GPU, same behavior.
Did you use DDU in Safe Mode to remove all GPU drivers(Intel, AMD and Nvidia) to later reinstall in an elevated command (assuming you're on Windows OS)?

Does the primary monitor standalone exhibit the same issue on a donor system or your current platform?

 

[jeremy.cino]

Did you use DDU in Safe Mode to remove all GPU drivers(Intel, AMD and Nvidia) to later reinstall in an elevated command (assuming you're on Windows OS)?

Yes I did try DDU. Which is weird is my secondary monitor doesn't have that problem

Does the primary monitor standalone exhibit the same issue on a donor system or your current platform?

I can't try the monitor "alone" because the problem appears when I disable the monitor, the re enable it, if I don't have any secondary monitor I can't see anything anymore. (Disable, not just turn off)