How come my MBP dims one notch every now and then?

Discussion in 'MacBook Pro' started by Gameaholic, Jul 23, 2010.

  1. Gameaholic macrumors member

    Mar 6, 2010
    Hey guys,

    Now i know what some of you are thinking and i am not talking about the dramatic dim of the display (about 3 or so notches) before it goes to sleep. I activated caffine app and somehow my MBP is pretty sneaky in that it automatically dims one notch whenever i used it for every 30 min. or so. I unchecked the "automatically dim brightness" before sleep in the system preferences. Anyone know anything about this?
  2. Corndog5595 macrumors 65816

    Jul 16, 2010
    It has a light sensor. When it gets dark the display dims, when it gets bright the display brightens.
  3. Gameaholic thread starter macrumors member

    Mar 6, 2010
    Ahhhh that makes sense. I thought my MBP was trying to be sneaky in saving energy and dimming the screen hoping I don't realize the difference :). Thanks man
  4. vant macrumors 65816

    Jul 1, 2009
    In a lighted room, place your hand over the webcam.
  5. ozreth macrumors 65816


    Nov 5, 2009
    You can turn this often under the system preferences. May save some battery life for ya.
  6. Nermal Moderator


    Staff Member

    Dec 7, 2002
    New Zealand
    Some models (such as mine) have the sensors under the speakers. If the camera doesn't do the trick...

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