fearull
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Q: After installing mavericks, the iMac will not wake from sleep properly (at all)

I've upgraded to 10.9 (late 2012 21" iMac), and I notice in the morning when the iMac has been sleeping overnight, it will not wake up,

During the day, if it sleeps for a few hours, it seems fine, and wakes normally, prompting me to type my password,

In the morning however, I hit a key (on my wireless keyboard), and the display wakes up, I get a dark grey screen, and see the loading circle (not the beachball) in the middle, and see the cursor for a few seconds, before it then disappears, and reappears.

This cycle repeats itself,

The 'fix' is to do a forced shutdown by holding the powwer button until it shuts down, and then restart.

 

Anyone else find this problem/find a solution?

iMac (21.5-inch, Late 2012), OS X Mountain Lion (10.8.3)

Posted on Oct 28, 2013 2:44 AM

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fearull

Q: After installing mavericks, the iMac will not wake from sleep properly (at all)

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  • by EdSinger,

    EdSinger EdSinger Oct 3, 2014 6:01 PM in response to EdSinger
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    Oct 3, 2014 6:01 PM in response to EdSinger

    I should add that the latest release of Mavericks - mine is 10.9.5 - improved the situation somewhat but has clearly missed the main point and is using some fix to force the screen to come alive again.  Occasionally this still fails and there is no option but to use the power button to close everything and re-boot.  When this fix is in operation, the screen will be activated, but often after a looooong  delay, and again, only sometimes, it will go black again for a few seconds before returning to use as normal.  It is truly pathetic that an OS with such a pedigree should be in this Microsoft-like condition at this stage, and after such a prolonged sequence of reports from frustrated Mac users.

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