Screen Dims

Discussion in 'Mac Basics and Help' started by oo7ml, Nov 8, 2011.

  1. oo7ml macrumors 6502

    Joined:
    Jan 20, 2010
    #1
    Hi, i have my mac (Lion) set to turn the asleep if the computer is idle for 1 hour when it is using the power adaptor, however i have noticed that the screen completely dims right down after a few minutes and i cannot see a setting for this anywhere...

    For your information, i also have the following unchecked:

    Automatically reduce brightness before display goes asleep

    Can anyone consider why the above might be happening... thanks in advance
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    I guess you already checked System Preferences > Energy Saver > Display Sleep?
     
  3. oo7ml thread starter macrumors 6502

    Joined:
    Jan 20, 2010
    #3
    Yes, i have that set to 1 hour... it seems to only happen on my main (1st) desktop screen, i generally use 3... the thing is it does not sleep, just dims a lot
     
  4. Quad5Ny macrumors 6502a

    Quad5Ny

    Joined:
    Sep 13, 2009
    Location:
    New York, USA
    #4
    In the Energy Saver settings see if "Automaticly reduce the display brightness before display sleep" is checked.
     
  5. oo7ml thread starter macrumors 6502

    Joined:
    Jan 20, 2010
    #5
    No, i mentioned that in my original post... that is unchecked :(
     
  6. chown33 macrumors 604

    Joined:
    Aug 9, 2009
    #6
    Maybe the ambient light in the room is changing, and the computer is adjusting screen brightness.
     
  7. oo7ml thread starter macrumors 6502

    Joined:
    Jan 20, 2010

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