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PantalonesSucia

macrumors member
Original poster
Oct 16, 2011
65
119
With Yosemite I've lost the ability to change my 24" Apple LED Cinema display brightness.

Previously, the brightness controls on my wireless keyboard changed it, but no longer. Displays under Systems Preferences shows the slider no longer as well.

Can anyone help? Editing images on this is impossible as it's 1 stop darker than my MBP.
 
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