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Archived - Aluminum Apple Cinema Display power light behavior

If you have an aluminum Apple Cinema Display, the front LED illuminates according to how you set the Display Power Button function in the Options tab in the Display pane of System Preferences. The table below shows how the LED behaves when you choose the following power button function settings:

This article has been archived and is no longer updated by Apple.
"Turns the display on and off"
  • On when computer is off
  • Off when computer is on
  • On when computer is sleeping
"Puts the system to sleep or wakes it"
  • On when computer is off
  • Off when computer is on
  • Pulsates when computer is sleeping
"Does Nothing"
  • On when computer is off
  • Off when computer is on
  • Pulsates when computer is sleeping
Last Modified: Sep 24, 2010
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  • Last Modified: Sep 24, 2010
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