Windows 10: Brightness bar is not working

Both my brightness keys, and my the brightness slider in settings have no effect on the brightness of my laptop's screen. I am able to use the controls to change it, but they just don't do anything. This has been an issue both before and after updating to windows 11.

:)

 

Brightness not working on Windows10.

Hi ,

On my Dell 5559 Windows 10 , brightness not working.

Have tried few steps from youtube videos but did not work.

Please guide.

Thanks.

 

Brightness Control not working in Windows 10

Hi Ella,

To adjust the brightness, see the steps below:

• Go back to Power Options, and tick on the High performance.
• See if you can adjust the brightness.

If this not work, we highly suggest that you create an Administrator account, and re-do the steps above.

Let us know how it goes.

 

brightness button not working

Hi Hitesh,

Thank you for posting your query in Microsoft Community.

I understand the inconvenience you are facing currently.

I would suggest that you perform the steps below and check if it helps your issue:

Step 1: Graphic Properties.

• • 
    Right click on the desktop, and select “Graphic Properties”.
    
  • 
    Choose your desired “Mode”.
    
  • 
    Once you have chosen your mode, on the left pane locate and select “Color Enhancement”
    
  • 
    Adjust your brightness and check if it helps.
    

Step 2: Un-install the Graphics driver.

• 
  Click on the Start button, and type “Device Manager” on the search bar.
  
• 
  Open Device Manager, expand "Display Adapters”.
  
• 
  Find and double-click Display Adapters from the left panel to uninstall.
  
• 
  Right-click the device, and click Uninstall.
  
• 
  Windows will prompt you to confirm the device’s removal. Click
  OK to remove the driver.
  
• 
  After the uninstallation is complete, reboot your computer.
  
• 
  After you have successfully uninstalled the driver, please go to the computer manufacturer’s website, download the Windows 10 Display adapters and Graphics driver for your computer and check.
  

Hope the information helps. Please let us know if the issue persist and we will be happy to assist you further.