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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

Sep 23, 2012 10:27 AM in response to SusanLake

Exactly same problem om my Macbook Air 11 inch Mid 2011. Upgraded to 10.8.2 a couple of days ago but problem only started yesterday. Has happened about 2 times, where just refuse to wake up from sleep. Interestingly when looking at Console Logs, on both occassions the last entry in the log is as follows:


Signal[274]: Error Domain=com.apple.coreWLAN.error Code=-3930 "Operation not permitted" UserInfo=0x400389500 {NSLocalizedDescription=Operation not permitted}


No idea what this means. Anyone know.


At moment, as Macbook Air is plugged into Monitor and in clamshell mode, is to set it to never go to sleep in the power preferences.


In General I have found 10.8.2 to be very buggy, have also had problems with Key Chain and ubd process creating 1000s of certificates and slowing everything down. Seriously considering rolling back 10.8.1.


At moment feel like I am living in Windows Vista World

Sep 23, 2012 11:00 AM in response to SusanLake

I'd be curious to see, does this occur with all types of sleep occurrences?


Macs will go to sleep 1 of 3 ways:

1. Software timeout sleep

2. Clicking  > Sleep

3. Hardware mechanisms: On portables closing the lid activates a magnetic sleep switch, on desktops quickly pressing the power button sends it to sleep.



Anyone willing to post a copy of their logs from after attempting to sleep? If so:

1. Mark the time you put the system to sleep

2. After a reboot open Applications > Utilities > Console

3. Under kernel.log, provide the logs from the time your system went to sleep, till whatever the current time is.


Might be interesting to see if there's some weird issue causing the systems not to enter sleep correctly.

Sep 23, 2012 2:22 PM in response to SusanLake

I've seen the same problem twice so far since upgrading to 10.8.2 on my MacBook Pro late 2008. When trying to wake, just get black screen. Nothing works, except powering off.


I don't know if the computer was actually running or not, since that laptop had all sharing turned off. SInce it happened a second time, I've turned on remote login and screen sharing.


Just saw a twist on what others have been reporting. Went to wake it just now. It is showing the login screen, but is not responding to any user input, and the password field is not highlighted. This may be the same problem, just happening slightly later in the wake up process.


However, I'm able to verify that the machine is actually running, since I just did a remote login (oddly it's not showing up for file sharing on my network).


I'm looking thru the system logs now... but not seeing anything that stands out as an obvious error related to sleep/wake. Any suggestions for what to look for?

Sep 23, 2012 2:54 PM in response to SusanLake

Weirder yet... went to shut the machine down remotely via "/sbin/shutdown -h now" and it has so far not actually powered off (after 5 mins). It killed all the services, so I can no longer remotely log-in, but the computer is still powered up with the login screen displaying (although again, doesn't respond to any user input). I've never had that happen before...

Sep 25, 2012 12:37 AM in response to SusanLake

This is the same problem for me. Though only on 1 of the 2 computers. The MacBook Pro i7 Early 2010 is fine. My work Mac Pro 2.66Ghz Quad-Core Intel Xeon will not wake from sleep. It used to on 10.8.1


My only option is to turn off the computer. Not ideal. I wonder if actually the problem is the screen sleep not the machine itself ?? Just an idea.


This is a problem I used to have in one of the versions of Lion too. I suspect its something thats crept back in again.


Bloody annoying though. I don't wish to shut-down my work machine each night in case I need remote access.


Checking the console it would appear there is rather a lot of activity overnight with the following entry starting the activity...


24/09/2012 20:14:45.000 kernel[0]: Wake reason: RTC (Alarm)

followed by...

24/09/2012 20:14:45.000 kernel[0]: RTC: Maintenance 2012/9/24 19:14:44, sleep 2012/9/24 17:14:46

Sep 25, 2012 2:34 AM in response to ErwinLiemburg

Similar problem here with a mid 2009 MacBook Pro, although the machine does wake eventually by itself if left alone. It used to wake pretty much instantaneously. Now takes maybe about 3 - 4 minutes and when it comes on it will usually have no internet connection (wifi will be connected though) for a further 3 - 4 minutes. Appreciate it's not quite the same variant of the problem other here are experiencing, but is still very frustrating.......

Problem with waking from sleep with 10.8.2

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