Windows 10: Brightness button

I'm not sure what caused this but whenever I press F11 to change my brightness, it instead makes my screen go to full screen. When I try to turn my brightness up with F12, it doesn't do anything.

:)

 

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.

 

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 buttons not working

Hi,

To resolve your issue regarding your brightness control buttons, we'd like to know if there are any changes you've made on your computer prior to the issue.

Meanwhile, we suggest updating your graphic divers with the steps on this
link.

We look forward to your response.

Thank you.