ncmacguy

Q: Power down 23" Cinema HD display connected to 27" iMac?

I've connected my old 23" Cinema HD display to a 27" iMac via a Mini DisplayPort to DVI adapter plugged into the Thunderbolt port to extend the desktop.

 

Everything works fine.

 

However, I would like to turn the power off to the Cinema HD when I don't need to use it. When I hit the illuminated power button on the front of the Cinema HD it glows brighter momentarily, but does not turn the power to the display off.

 

If I put either display to sleep, both go to sleep. It would be nice to independently sleep the Cinema HD, or power if off.

 

Any suggestions short of unplugging the power to the Cinema HD?

iMac, Mac OS X (10.7.2)

Posted on Nov 14, 2011 2:11 PM