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Can't change brightness on external 27" cinema display

5868 Views 9 Replies Latest reply: Feb 13, 2013 8:00 AM by Renaissance Man in Taiwan RSS
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Dec 4, 2011 1:04 PM



I can't change the brightness of my 27" cinema display. I have no brightness fader on the settings. I have tried it with my MacBook Pro (Sow Leopard) and my MacBook Air (Lion). On both devices the same problem.


The display is too dark and I would like to brighten it up.


I have searched the forum and tried several things without luck.

The USB cable is plugged in.


Any help is highly appreciated.




Cinema Tools, Mac OS X (10.7.2)


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