So I have an interesting issue with my Retina that I have had for about a month in a half now. It all started happening after the recent EFI firmware update that came out of the 19th. And the issue happens about 50 percent of the time. When I put my MBP to sleep all is fine. But when I open it to try to wake it up, it tends to just go to a black screen. I know its on. I can slightly hear the fans. Even when I hit caps lock the light goes green(but the backlit keyboard is off). Only way to get out of it, is a hard shutdown. I have to tried to fix it. First I thought it might be a power nap issue. So I disabled that. No go. I even went as far as doing a full Erase & Install of the OS. And I did not bring over a time machine backup. I set it up as new. Did not solve. Im not sure what to do. Right now I turned off automatic graphics switching to see if that has anything to do it with it. Any help or comments are appreciated.
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MBP Retina Sleep/Wake Issues
- Thread starter chuckm1020
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Yeah I have had similar issues with my rMBP especially when plugging in the power cord when its asleep and it then not waking up when I lift the lid.
Will be interested to see what people suggest to you.
(I have recently reset my SMC though to correct issues with FPS in games since the Firmware update recently, and haven't had an issue yet since...).
Will be interested to see what people suggest to you.
(I have recently reset my SMC though to correct issues with FPS in games since the Firmware update recently, and haven't had an issue yet since...).
Totally forgot about the ol SMC. I gave that a try. Then I turned back on auto graphics switching, then put to sleep for an hour. Woke it up and still got black screen. The keyboard was lit this time though. Weird 
So now I turned back off auto graphics switching. We shall see!! What I pain in the ass!!
So now I turned back off auto graphics switching. We shall see!! What I pain in the ass!!Totally forgot about the ol SMC. I gave that a try. Then I turned back on auto graphics switching, then put to sleep for an hour. Woke it up and still got black screen. The keyboard was lit this time though. Weird
Yeah when mine has the problem the keyboard is lit but the screen stays black, and only a hard restart will work.
I am confident this is a Mountain Lion issue as I didn't have that problem till upgrading - I have contemplated doing a fresh install as I only did an upgrade but the problem at the moment doesn't happen enough to warrant the pain and annoyance of starting again! lol.
Well it looks like turning off automatic graphics switching didn't work. Has happened 3 times today already. This happened after I put that EFI update on. Is there a way to revert back or even just reinstall the update again(maybe something got corrupt on it)?
The recent update for all 2012 MacBook pros with the graphics update actually fixed my issue so far.