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Anton New York

Q: 2011 27" iMac After waking from sleep mode a grey screen appears, sometimes lasting 5 seconds before correct wake up screen appears. This happens about 60% of wake ups from sleep mode. I have updated my operating system to Makericks recently.

A few weeks after updating my 2011 iMac 27" to Mavericks I have have developed a delay in my monitor waking from the sleep mode. I get a grey screen, and after 1 to 5 seconds I get a normal screen. This happens about one half of the times I wake from sleep mode.

The delays are getting longer.

Can someone help me with this iisue?

iMac (27-inch Mid 2011), OS X Mavericks (10.9)

Posted on Dec 2, 2013 4:55 AM

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