Strange Screen Dimming Behavior

Discussion in 'PowerPC Macs' started by brycemason, Aug 12, 2011.

  1. macrumors member

    May 18, 2011
    My PB12 just started exhibiting a strange behavior. After a period of no keyboard or mouse activity, the screen dims. However, after touching the keyboard or mouse it does not return to its former brightness. If I press the F1 or F2 key it immediately changes to the former brightness (plus or minus one notch depending on what I pressed).

    Anyone ever run into this? Annoying.
  2. macrumors P6


    Jan 24, 2010
    It could be the "dim screen on idle setting". Check the Energy Saver pref pane to make sure it isn't checked.

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