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    Brightness toggle question

    Discussion in 'Alienware M15x' started by Neutral777, May 24, 2011.

  1. Neutral777

    Neutral777 Notebook Enthusiast

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    Alright real quick question guys.
    I've noticed ever since I got my m15x I can't change the brightness.
    F4 and F5 seem to be the toggle switches and while I can press them and it shows the bar with 7 levels it doesn't do anything to the brightness... is this normal?
    I've even tried lowering brightness in Windows settings does nothing.
    The only thing that will lower it a bit is when I unplug the power supply.
    Is there something really stupid I'm missing? I feel like I should be able to increase and decrease brightness with those 2 buttons..
     
    Neutral777, May 24, 2011
    #1
  2. widezu69

    widezu69 Goodbye Alienware

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    You should, you may need to upgrade your drivers. I assume you are using nvidia. In which case go to the nvidia site and get the latest beta. They should work.
     
    widezu69, May 24, 2011
    #2
  3. inap

    inap .........................

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    try reinstalling the osd, but could also be a driver issue

    edit widezu is quick today, hahaha
     
    inap, May 24, 2011
    #3
  4. TheHighlightGuy

    TheHighlightGuy Notebook Consultant

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    I'm sure it's a stupid question, but are you pressing the function key (FN) with the F4 or F5?
     
    TheHighlightGuy, May 24, 2011
    #4
  5. Flame113

    Flame113 Notebook Geek

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    I think he did it because he said: "...it shows the bar with 7 levels..." :)
     
    Flame113, May 24, 2011
    #5
  6. TheHighlightGuy

    TheHighlightGuy Notebook Consultant

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    My bad! Missed that part :eek:
    Then an OSD reinstall sounds like a great idea, if not a full reinstall :)
     
    TheHighlightGuy, May 24, 2011
    #6
  7. pepemosca

    pepemosca Notebook Evangelist

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    @Neutral777, which video card do you have?
     
    pepemosca, May 25, 2011
    #7
  8. Neutral777

    Neutral777 Notebook Enthusiast

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    Nvidia GTX460m
     
    Neutral777, May 25, 2011
    #8
  9. TheHighlightGuy

    TheHighlightGuy Notebook Consultant

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    If you're using one of the drivers with a modded .inf then that would be your problem.
    Install the latest 275.27 or 267.76 driver as these are the best Beta and Stable releases from Nvidia.
     
    TheHighlightGuy, May 26, 2011
    #9
  10. Neutral777

    Neutral777 Notebook Enthusiast

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    Wow you were totally right haha. Seems to be fixed now. Thanks :)
     
    Neutral777, May 26, 2011
    #10
  11. TheHighlightGuy

    TheHighlightGuy Notebook Consultant

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    No problem!
     
    TheHighlightGuy, May 26, 2011
    #11