| Display Power Button Setting | LED Behavior |
| "Turns the display on and off" |
|
| "Puts the system to sleep or wakes it" |
|
| "Does Nothing" |
|
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:
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