Screen Brightness Resets to Max Upon Startup

Discussion in 'MacBook Pro' started by Reservation, Sep 29, 2011.

  1. Reservation macrumors member

    Joined:
    Sep 18, 2011
    #1
    Like the title says, my MBP always resets its brightness upon startup. Is there any way to fix this?
     
  2. Reservation thread starter macrumors member

    Joined:
    Sep 18, 2011
  3. Woodbags macrumors newbie

    Joined:
    Aug 12, 2011
    #3
    The brightness should be controlled by the ambient light sensor, have you tried restarting in darker/lighter environments?
     
  4. Badrottie Suspended

    Badrottie

    Joined:
    May 8, 2011
    Location:
    Los Angeles
    #4
    uncheck ambient light sensor via display setting so it will not reset again.
     
  5. Reservation thread starter macrumors member

    Joined:
    Sep 18, 2011
    #5
    The ambient light detector has been unchecked. That hasn't resolved the problem. I should also mention that the sound also *sometimes* resets to full upon startup. In fact, sometimes the brightness/sound will be low and sometimes it will be max (you can hear the startup sound even with headphones plugged in!) upon startup; it seems pretty random.

    Needless to say, it's extremely irritating.
     
  6. swaroop.ms macrumors newbie

    Joined:
    Apr 15, 2012

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