Windows 8 and 8.1 Forums

Unable to adjust brightness in my windows 8.1

  1. #1

    Posts : 1
    windows 8.1

    Unable to adjust brightness in my windows 8.1

    I am having this problem from past 3-4 days I am unable to adjust my laptop's brightness. The functions keys for brightness won't work. I also tried changing the power settings to high performance and balanced, that also doesn't changes the brightness.
    I also tried manually adjusting the screen brightness. The slider moves but the brightness is not changing.

    I am using IntelR (HD) Graphics family.
    I tried changing it back to Microsoft basic display adapter but that also didn't help.

    I got windows 8.1 installed from the factory itself and everything was working fine until past few days.

    Any suggestions??

    P.S. => I am using a Lenovo G50 series laptop

      My System SpecsSystem Spec

  2. #2

    First off, figure out whether or not your laptop has an ALS (Ambient Light Sensor) which will automatically adjust the brightness (if all goes well). Usually it won't override a manual setting, but it's kind of up to the developer which one takes precedence. As for the keys not working, you probably removed (or didn't install after a Windows reinstall) the helper software that controls these functions.
      My System SpecsSystem Spec

Unable to adjust brightness in my windows 8.1

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