Solved Windows 11 and screen dimming randonly


user978623

New member
Local time
11:14 AM
Posts
4
OS
Windows 11
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

  • OS
    Windows 11
I seem to get this as well, no idea why its happening. I use 2 monitors and both seem to do the same thing.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom Built
    CPU
    Intel i9 14900KF
    Motherboard
    Asus ProArt Creator WiFi
    Memory
    64GB Corsair Vengeance RGB
    Graphics Card(s)
    MSI 4090 Suprim X
    Sound Card
    Onboard
    Monitor(s) Displays
    1 x Asus 24". 1 x Asus 32"
    Hard Drives
    Multiple
    PSU
    Corsair 1200HX
    Case
    Corsair 7000D RGB
    Cooling
    Corsair H150I Capellix XT
    Keyboard
    Corsair K70 RGB MK.2
    Mouse
    Corsair M55 RGB Pro
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

  • OS
    Windows 11 Home x64 Version 22H2 Build 22631.3155
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

  • OS
    Windows 11
... 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

  • OS
    Windows 11 Home x64 Version 22H2 Build 22631.3155

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom Built
    CPU
    Intel i9 14900KF
    Motherboard
    Asus ProArt Creator WiFi
    Memory
    64GB Corsair Vengeance RGB
    Graphics Card(s)
    MSI 4090 Suprim X
    Sound Card
    Onboard
    Monitor(s) Displays
    1 x Asus 24". 1 x Asus 32"
    Hard Drives
    Multiple
    PSU
    Corsair 1200HX
    Case
    Corsair 7000D RGB
    Cooling
    Corsair H150I Capellix XT
    Keyboard
    Corsair K70 RGB MK.2
    Mouse
    Corsair M55 RGB Pro
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

  • OS
    Windows 11 Pro 23H2 22631.3155
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    1tb Solidigm m.2 +256gb ssd+512 gb usb m.2 sata
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium
  • Operating System
    Windows 10 Pro 22H2 19045.3930
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 9020
    CPU
    i7-4770
    Memory
    24 gb
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 gb Toshiba BG4 M.2 NVE SSB and 1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell factory
    Mouse
    Logitech wireless
    Keyboard
    Logitech wired
    Internet Speed
    still not telling
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium
Seems that this problem went away or at least I haven't seen it in days. All that is changed is KB5007262 got installed at 26th of November.
 
Last edited:

My Computer

System One

  • OS
    Windows 11

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