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    Cannot adjust screen brightness after sleep on battery

    Discussion in 'Alienware M15x' started by MartinHatch, Apr 4, 2012.

  1. MartinHatch

    MartinHatch Notebook Enthusiast

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    This has been bugging me for a while now..

    If my laptop is running on battery and "sleeps" (either through idleness or shutting the lid) then I cannot adjust the screen brightness..

    Worse, my power plan dims the screen to 20% before it sleeps .. so it gets stuck at this rediculously low brightness.

    The only solution so far is to reboot.

    Anyone else having this problem?

    Note:

    Windows 7 Ultimate x64 SP1
     
    MartinHatch, Apr 4, 2012
    #1
  2. otosan

    otosan Notebook Consultant

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    what driver r u using now?
     
    otosan, Apr 4, 2012
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  3. MartinHatch

    MartinHatch Notebook Enthusiast

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    Was using an older Catalyst driver from 2011 .. just updated to 8.951.0.0 (08th March 2012) to see if the problem goes away
     
    MartinHatch, Apr 4, 2012
    #3
  4. Indiran

    Indiran Notebook Evangelist

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    Go to ur plan, create a plan or use existing plan, go to change plan settings -> change advanced power settings -> power buttons and lids -> lid close action -> do nothing either on battery or plugged in (i use plugged in). Then simply put the lid down (make sure ur plugged in when u do it), wait few seconds then pull it up again. I recommend u create a new power plan, then switch the time u need it.
     
    Indiran, Apr 4, 2012
    #4
  5. blizzars

    blizzars Notebook Enthusiast

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    I also have this problem and have the latest drivers. If anyone could find a remedy it'd be really helpful S:
     
    blizzars, Apr 4, 2012
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  6. Flame113

    Flame113 Notebook Geek

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    I suggest you run a diagnostic to see if it is a LCD problem or not
     
    Flame113, Apr 9, 2012
    #6