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cleric

macrumors 6502a
Jun 7, 2008
533
0
Maybe you should ask in the Macbook Pro forums, but I'm guessing it lights up when its dark.
 

zedsdead

macrumors 68040
Jun 20, 2007
3,438
1,252
It's based on a ambient light sensor, walk into a dark room and they should go on. The F5 and F6 keys control the brightness of that light.
 
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