HT202089: Calibrating displays with built-in ambient light sensing

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Q: My ambient light sensor option disappeared?

I have a 2009 Macbook Pro laptop running El Capitan. I use an Apple LED Cinema Display with it. Today, my LED Cinema Display went black the instant I downloaded an app update. After playing with the display I got it to work again, but it is not bright enough. During the process of playing with it I unchecked the Ambient Light Sensor option and now that very option is missing! I think I need it to get the display brightness to work properly. Any ideas?

MacBook Pro, OS X El Capitan (10.11.5), Apple LED Cinema Display

Posted on Jun 1, 2016 10:41 AM

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Q: My ambient light sensor option disappeared?

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