Problem with waking from sleep with 10.8.2

My Mac Pro (early 2009 2.66 GHz Quad-Core Intel Xeon) won't wake from deep sleep after installing OS X 10.8.2 . I have the default setting set for sleep. The only way to "wake" the machine is to hold the power button down to shut down and then restart. I've reset NVRAM (pram) and tried removing power cable. Nothing helps.

Mac Pro, OS X Mountain Lion (10.8.2)

Posted on Sep 21, 2012 1:53 PM

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267 replies

May 10, 2013 4:21 AM in response to Macilias

By the way, i just read in another thread that it`s a well known bug.


It only happens with 10.8.2 and 10.8.3. A lot of users (not all) have the same problem.

Newest imac's are not affected.


Temporary solution until Apple comes with an update:

set sleep mode into 'never'.


Sound not that optimistic and sounds like either always turn completely off or let run for ever solution.

Jun 10, 2013 6:29 AM in response to SusanLake

So... an interesting thing happened the other day. Apple called me at home to collect information on the issue. So it seems they are aware of the issue, and trying to address it, but considering that 10.8.4 just came out the other day, and they are still trying to resolve it, it would suspect this may be ongoing for some time.


I gotta say, I'm impressed by their due dillegence.


If I ever get to a point where I have the time and can risk doing a fresh install by manually transferring my files and re-installing everything; that seems to be the only way to permanently resolve the issue.


Despite the fact that I am impresed Apple is contacting their customers over this, I doubt that I will ever purchase an OS X upgrade ever again on a new Apple computer. The new features are not worth the hassle. Apple should be concerned over this. I consider myself an early adopter, willing to risk buggy upgrades for new shiny features, but I can safely say that it has been more of a pain than gain.


The only workaround that worked for me was installing the app "SmartSleep" from the developers website (not the App Store version).

Jun 10, 2013 6:41 AM in response to sleepystu

Funny, I've also been contacted by an Apple technician recently, and he's sent me some information about what to do, to gather more info, should it happen again, which it "unfortunately" doesn't.


As stated above on May 10th, I've been running on 10.8.4 beta (12E55 by now) for a while now.
And guess what: I can really have my rMBP sit for 24+ hours, reopen, and it wont crash.

Whereas previously the screen would remain dark after opening the lid, it now turns on the backlight after about a second, and the resumeing goes on as expected.


My current pmset settings:

bash-3.2# pmset -g

Active Profiles:

Battery Power -1*

AC Power -1

Currently in use:

standbydelay 7200

standby 1

halfdim 1

hibernatefile /var/vm/sleepimage

darkwakes 0

gpuswitch 2

disksleep 10

sleep 30

autopoweroffdelay 14400

hibernatemode 3

autopoweroff 1

ttyskeepawake 1

displaysleep 10

acwake 0

lidwake 1


I hope they are pretty much default, because I reset them after fiddling around and ran my tests with them.


My bet: 10.8.4 fixes the issue, and I assume it has/had to do with the display or graphics-driver.

Jun 10, 2013 7:10 AM in response to Martech

I think it is safe to assume not everyone is having the same issue, on different systems, with different configurations. That said, most of the people are reporting the same symptoms as you reported: black screen, no backlight, nothing after wake. No beach ball, no kernel panics (although I experienced those periodically).


The only solution was to hold the power button to shut down, then restart.


Many work-arounds have been suggested: like disabling hibernation/sleep, and installing 3rd party apps (like SmartSleep), but that is a lousy band-aid solution that fixes nothing.


Some swear that it is a graphics driver/hardware issue, some are convinced that it is software that crashes upon sleep/during the wake procedure.


People report often that the issue is "fixed" after changing system setting, deleting pref files and temp files, or after an OS X update, but they more often than not return here to report that the issue has come back.

Jun 11, 2013 9:35 PM in response to sleepystu

I have done the bandaid of turning off sleep. It has help much but I have still had the freez happen once in about 2 weeks (VS once a day). In this case, the mosue worked fully, iTunes continued to play songs and the UI was simply dead. No beach ball. It was almost as the WindowServer simply died and the only thing that would react was the mouse pointer.


BTW: This was with 10.8.3. I have since updated to 10.8.4 but have not turned sleep back on.

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Problem with waking from sleep with 10.8.2

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