You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

wkoffel Author

Level 1

5 points

Mountain Lion won't wake from sleep

I have a mid-2011 Macbook Air 13". Since installing Mountain Lion (and immediately upgrading to the latest SMC firmware update), the machine will not wake from sleep. When I close the lid, it goes to sleep fine. Upon opening the lid, the screen turns on (apple logo glows on outside of monitor, faint glow from screen), but it remains black, nothing ever appears. Only way to fix this is to hard-reset the machine. Machine was fine under Lion, most definitely related to that upgrade, but still unclear how.

I've tried 3 different things that I found in other forums, hoping to consolidate them here.

1. Reset SMC (http://support.apple.com/kb/HT3964)

2. Reset PRAM (https://discussions.apple.com/docs/DOC-3604)

3. Set the startup volume specifically in the startup disk system preference.

None of these have fixed my issue.

Is this issue more widespread? Seems that others are reporting it on a variety of SSD macs, but that could be a red-herring.

NOTE: this was an upgrade, not a clean install. I will attempt a clean install onto an external bootable drive in a few days to see if this is a hardware/SMC issue, or a Mountain Lion issue, or a 3rd party software conflict problem that crept in during my upgrade.

Any other advice out there?

MacBook Air (13-INCH, MID 2011), OS X Mountain Lion

Posted on Jul 28, 2012 5:54 AM

116 replies

Jun 29, 2013 7:28 AM in response to sleepystu

New iMac 27", fullly loaded latest model. Did a full clean reinstall with Mountain Lion 10.8.4. FAIL

I am using a USB keyboard and USB mouse. Neither will wake the computer after an overnight sleep. The only way is with a tap of the power button.

It's also slow to wake up from a general short lived screen saver type sleep during the day. If I go away for an hour, first the screen wakes, then I wait for the mouse to appear, then wait for it to allow me to type in my password, then wait for it to respond to any mouse clicks in firefox, etc. FAIL

Not pleased.

Oh, also, this is Apple RAM, so that is not the issue. I have nothing but the operating system and firefox installed, so it's not an issue with sw conflicts.

I have read that some of the USB connections can cause issues, but dont really know how to test that.

Next test will be to see if the wireless mouse and keyboard act the same way. Strange this is, I have 10.8.4 installed on my 2008 24" imac, but it doesnt have this problem using this particular keyboard and mouse.

Jun 29, 2013 12:16 PM in response to geoffrey2k

It shouldn't be related to your keyboard and mouse. I have this problem since I updated my mid 2012 macbook air from Mac OS X Lion to Mountain Lion! Now I'm on 10.8.4 and still have this issue. Really missed that fast waking up of old days on my air with Lion.

That's frustrating that we are about to get Mavericks and we still have this issue floating around on ML.

Aug 17, 2013 8:59 PM in response to wkoffel

The problem with my Mac Pro (5,1) not waking up from deep sleep went away with the 10.8.3 update. However, I just updated to 10.8.4 and the problem is back! I thought I'd mention it in case someone had the problem fixed when they updated to 10.8.3 and is considering updating to 10.8.4. It would be great to have this problem fixed permenately so I can get back to work.

Nov 1, 2013 12:27 PM in response to Stephen Eyer

For those following this thread, I thought I'd update my situation. I ended up bringing my Mac Pro into the Apple Store for an evaluation. They were not able to recreate the problem, since it was happening interminably. They ran full diagnotics on the hardware and software and both checked out fine. I brought it home and it kept happening.

So I brought it a second time and again it check out fine, but when I got it home it would still not wake from sleep.

The THIRD time I brought it in, I asked them to replace the power supply, even though it appeared to be okay when the hardware diagnostic was completed. Since it was covered under AppleCare they agreed to replace it even though they could not recreate the problem.

This fixed it. I've been working for the past few weeks with no issues.

I don't know if it's related, but I did see this error in the console each of the three times that it failed to wake from sleep:

9/24/13 11:33:15.000 PM kernel[0]: Sleep failure code 0x00000000 0x1f006900

9/29/13 8:48:55.000 PM kernel[0]: Sleep failure code 0x00000000 0x1f006900
9/30/13 10:32:39.000 AM kernel[0]: Sleep failure code 0x00000000 0x1f006900

So while I thought it was a software issue, it turns out it was a hardware issue for me. I hope this helps anyone else trying to troubleshoot this problem on their machine.

Nov 12, 2013 4:54 PM in response to Stephen Eyer

So I had this problem almost immediately on a refurbished 13" retina pro (feb 13 release) I bought at the end of Sep. After two calls without fixing I took to the store. Even though the issue presented again on dropping off, they were unable to replicate again and ran two days work of diagnostics finding nothing wrong. When picking up, I pressed on the the next step. They stated that this was a new firmware issue that was starting to appear on my mackbook release. They replace my computer, and the issue remains. Thought it was after being asleep for a long time, but it would not wake up after just an hour or so tonight. I don't know what to do next. Wait for the fix to be pushed to all? Running 10.9.