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View Full Version : screen corrupted to primary colors after sleep



rrmcentroameric
12-15-2016, 09:14 PM
After approximately hour or more of use when display sleeps and I try to awaken, the Image is corrupted and displays vivid primary colors including desktop. I can correct it if I restart the MAC. Is this a problem with mac system or Monitor? Is there a way to fix it? Have mac mini late 2014 Intel core I-5, 8GB memory, Intel iris 1536MB, Yosemite 10.10.5 will Dell Monitor. 1.12 Fusion Drive.

chscag
12-15-2016, 09:23 PM
Welcome to our forums.

You can test if the problem is with the GPU in the Mini or the monitor by substituting another monitor in place of the Dell. Do that first and then we can decide what to do if the problem persists with the test monitor.

ferrarr
12-15-2016, 09:23 PM
You didn't say what connection type? From the Mac mini and into the monitor?

rrmcentroameric
12-15-2016, 10:43 PM
You didn't say what connection type? From the Mac mini and into the monitor?

its a HMDI connection.

I do have backs Hard disk and iCloud - thanks for the reminder though:D

rrmcentroameric
12-15-2016, 10:46 PM
Will look for another monitor to verify source of the problem. Thanks