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Switch off internal monitor when external connected

D

drtanz

macrumors member
Original poster
Sep 27, 2012
58
0
I would like to play a game on my Macbook pro 13. I'm assuming having the pro power just the external display will result in better performance than having it power both displays. So I'd like to know the way to disable the internal display when I connect the external one. Thanks.
 
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