Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

hello880

macrumors member
Original poster
Aug 15, 2011
67
0
I have a MBP 2011 13" and it keeps making this hissing sound in the top left corner whenever I turn the brightness down to more than half... does anyone know what the problem is?
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.