Windows 8 and 8.1 Forums


I can't adjust the brightness of my screen, what can I do?

  1. #1


    Posts : 4
    windows 8

    I can't adjust the brightness of my screen, what can I do?


    So, a few days ago the battery of my laptop died and when I charged it and power it up again I found that I can't change the brightness of my screen which I was able to few minutes before. I tried fixing it by going onto control panel>hardware and sound>power option, but it didn't work. It's just stuck. What can I do? Is my laptop broken? Please help

      My System SpecsSystem Spec

  2. #2


    Harrisonburg, Va.
    Posts : 10,488
    Windows 8.1.1 Pro with Media Center


    Do you have this:

    Click image for larger version

    Check in the notification area for it.
    You might have to click the Customize button to find it, if you have it:

    Click image for larger version
      My System SpecsSystem Spec

  3. #3


    Posts : 4
    windows 8


    Yeah, I've got that but that doesn't really help me change it like the way that Fn+F5/F6 changes the brightness.
      My System SpecsSystem Spec

  4. #4


    Check for the Windows Mobility Center and see if you can adjust it from there.
      My System SpecsSystem Spec

  5. #5


    United States
    Posts : 3,093
    Windows 8.1 Pro 64-bit


    Could also try cycling the video driver in Device Manager. Uninstall then scan for hardware changes, let it re-install.
      My System SpecsSystem Spec

  6. #6


    Posts : 4
    windows 8


    Mr Sardonicus - I can't adjust it on the Mobility Center, it moves but the brightness doesn't change.
    popeye - How do I cycle the video driver? I can't find it on Device Manager.
      My System SpecsSystem Spec

  7. #7


    Posts : 2,191
    Windows 8.1


    Could you please provide your laptop make/model number and answer the following questions as well:

    a few days ago the battery of my laptop died
    Which battery are you referring to?

    Check to see if there are any BIOS-related settings that you may need to reset.

    my2cents
      My System SpecsSystem Spec

  8. #8


    Posts : 4
    windows 8


    my laptop is a sony vaio, model number is SVE151A11W.
    the battery that the laptop run on, the one that you can recharge.
      My System SpecsSystem Spec

  9. #9


    Posts : 2,191
    Windows 8.1


    my laptop is a sony vaio, model number is SVE151A11W.
    I can't find that model number as listed. It seems you are missing a digit or character. Please check your BIOS for settings related to function keys. Good luck.
      My System SpecsSystem Spec

  10. #10


    Posts : 1
    Windows 8


    I don't know if it's the same issue cause this is what I did when my brightness slider vanished but try the following:

    Start > Control Panel > Hardware and Sound > Device Manager

    Once the Device Manger box opens expand the "Monitors" tab

    Left Click and Uninstall the monitor listed

    Then select the Scan for Hardware Changes Icon

    Sounds bizarre, but should work if it's the same issue
      My System SpecsSystem Spec

I can't adjust the brightness of my screen, what can I do?
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