Brightness automatically diming

Discussion in 'Mac Basics and Help' started by hunterjoules, Jul 31, 2007.

  1. hunterjoules macrumors member

    Joined:
    Jan 2, 2007
    #1
    Hi everyone,

    I have an Intel iMac, and for some reason every once in a while after I boot my machine the screen's brightness is very low, much lower than what I usually keep it at.

    When this happens, I simply open the display preferences and increase the brightness to the appropriate level, but it is a little annoying. Most of the time my screen remembers it's brightness settings when I turn it on and off.

    Does anyone know why this is happening? Is there anyway to "fix" this?
     
  2. iBlue macrumors Core

    iBlue

    Joined:
    Mar 17, 2005
    Location:
    London, England
    #2
    Could it be the ambient light sensor?

    go into system prefs > displays > uncheck "automatically adjust brightness as ambient light changes"
     
  3. RumMunkey macrumors 6502a

    RumMunkey

    Joined:
    Nov 3, 2006
    Location:
    Canada
    #3
    iMacs have that? I assumed it was just on the portables.
     
  4. iBlue macrumors Core

    iBlue

    Joined:
    Mar 17, 2005
    Location:
    London, England
    #4
    Yes, I believe it started with the iSight models and on up.
     

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