Windows 11 and screen dimming randonly

user978623

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Hello,

Anyone else have or seen a problem with Windows 11 where the screen suddenly dims for 1-2 seconds. This happens randomly. Started immediately after I installed Windows 11. Not an issue with the display itself because I use this same display with my work Windows 11 laptop but don't have this problem.

AMD Ryzen 3950x
X570
Nvidia GeHorse GTX 1660
 

My Computer

System One

  • Operating System
    Windows 11

Try3

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Hello,

Anyone else have or seen a problem with Windows 11 where the screen suddenly dims for 1-2 seconds.

Screenshot being taken?

Take a screenshot [traditionally, WinKey-PrntScrn],
note the index number in its filename,
wait for an unexpected dimming to occur,
take another screenshot,
note the index number in this one's filename,
compare the two index numbers to see if another has been taken inbetween them.

Denis
 

My Computer

System One

  • Operating System
    Windows 11 Home x64 Version 21H2 Build 22000.194

user978623

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Screenshot being taken?

Take a screenshot [traditionally, WinKey-PrntScrn],
note the index number in its filename,
wait for an unexpected dimming to occur,
take another screenshot,
note the index number in this one's filename,
compare the two index numbers to see if another has been taken inbetween them.

Denis

I don't think it's that. If I press win+prtscrn and take screenshot it gives a little bit different dim that I'm getting.
 

My Computer

System One

  • Operating System
    Windows 11

Try3

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... it gives a little bit different dim that I'm getting.

Okay. I don't expect to be able to help but I do suggest that you try to describe the 'dim' in case it helps someone else help you - in particular, do clarify whether it is a 'dim' or a 'flicker'
[the only time I've seen flickering it turned out to be the display cable failing but I imagine there are other causes].

Perhaps you could capture the dimming on a video taken with your phone? If you are lucky enough to have it to hand at the right time.

Personally, I would reinstall the display driver even if it's just to eliminate it as a cause.
- It doesn't matter if it's the same version as you have now. It's the act of reinstalling that re-references all its components.

Best of luck,
Denis
 

My Computer

System One

  • Operating System
    Windows 11 Home x64 Version 21H2 Build 22000.194

glasskuter

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Here are a few things to try. Try them one at a time.
1.Turn off adaptive brightness (called night light in Windows 11) in settings- system-display-nightlight.
2. Try running your windows windowed instead of maximized. Somewhere, one time I read that fixed the dimming for some people.
3. Go to your power options and set it to 'maximum performance'.
 

My Computers

System One System Two

  • Operating System
    Windows 10 Pro 21H1 Host w/Windows 11 beta running as VMware VM
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900
    Memory
    16 gb
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 ssd 1 tb hdd
  • Operating System
    Windows 10 Pro 21H1
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 Q470 chipset
    Memory
    16 gb
    Hard Drives
    256 gb Toshiba BG4 M.2 NVE SSB and 1 tb hdd
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