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  1. #1
    Junior Member
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    Aug 2012
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    Default Brightness is "unavailable" with windows 8

    Hello,

    Running Windows 8 pre-release version. One day I was using the computer and the power was accidentally switched off (force shut). Ever since then whenever I switch on the computer the brightness is at a really high level. It is too glaring to use. The function key to adjust brightness does not work, and when I enter settings, the Brightness is "unavailable".

    What can I do about this?

  2. #2
    Senior Member Medico's Avatar
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    Mar 2012
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    Default Re: Brightness is "unavailable" with windows 8

    I would try the System Restore from just before the problem, or perhaps a System Refresh. Make sure you choose Refresh, NOT Reset.

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  4. #3
    Moderator
    Join Date
    Aug 2011
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    1,150

    Default Re: Brightness is "unavailable" with windows 8

    Maybe its driver issue. I would suggest you to download and install the video card drivers from the manufacturer’s website and install it in Windows 7 compatibility mode and check if that helps.

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