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Q: dual monitor freeze on sleep

Mac OS X 10.9.5.  Current model iMac:  3.5GHh i7.  32GB main mem.  NVDIA GeForce GTX 780M 4096MB.

 

Runs fine without a second monitor.  Sleep, both manual and timeout, works fine.  Press any key awakes.

 

Plug in a second monitor (2 month old 27" Thunderbolt display) all works fine until Sleep happens, both manual and timeout, and then system is hard frozen.  No wakey.  Press and hold on/off key for a long time.  Wait.  Press on/off key 3 times, reboots and all is as before.

 

Only solution:  Never sleep.  Turn off at night to save screen hours.

iMac (27-inch, Late 2013), OS X Mavericks (10.9.5), Thunderbolt display is 2nd monitor

Posted on Sep 28, 2014 5:24 PM

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Q: dual monitor freeze on sleep

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