How to fix brightness button not working Windows 11

How to fix brightness button not working Windows 11

If the brightness setting in Windows 11 doesn’t work – neither by using the button in the notification area, nor by adjusting the screen settings, nor by using the dimmer and boost buttons – we’ll tell you how to fix it.

 

Universal PnP monitor” is disabled:

  • Start the Device Manager.
  • Under ‘Monitors’, look for ‘Universal PnP monitor’.
  • If you see a small arrow next to the icon, the device is disabled.
  • Right-click on it and select “Enable”.
  • Reboot the computer.

 

Video card drivers:

  • Install the official drivers manually by uninstalling the old ones.
  • If your computer has a discrete video card and integrated video from Intel, also install the latest drivers from the manufacturer.
  • Check if the video adapter is disabled in Device Manager.
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