Currently Being ModeratedNov 20, 2012 6:44 PM (in response to SusanLake)
Early Macbook Pro 2009 same issue. Have reinstalled Mountain Lion, set wake up to 25, downloaded new Graphics update, SMC Pram done it all, was running fine for about a week, and now it's doing it all again sigh..and not only doesn't it wake up the entire system is running slow and fans are running high. I'm going to delete the Cache and Cookies again to see if that helps and to a SMC reset.
Currently Being ModeratedDec 3, 2012 3:52 PM (in response to SusanLake)
I too have a problem waking my MacPro (early 2009) from a deep sleep. Have tried the above solution more than once but the problem remains. I have just installed Mountain Lion 10.8.2 on top of the last Lion release.
Driving me mad.
Currently Being ModeratedDec 6, 2012 10:41 PM (in response to SusanLake)
Because of "nda" I'm afraid I can't speak too much about it, but any person with this problem and registred at adc ( Register ) can give a try at Mac OS ML last update. It is possible to register for free...
For others the solution could be there in a couple of weeks ( days ? ) via Software Update in the Apple menu ..
It worked for me and this black screen pulsing but dead Mac thing I had for months is gone now. As is the sound the graphic card used to make : a slight puf-puf-puf-puf, very slight but never ending noise when Mac was supposedly asleep.
hth and that I did not broke the "non disclosure agreement"
Currently Being ModeratedDec 9, 2012 8:59 AM (in response to KVDB)
All I can tell is that, for 6 days now, since I updated a little week ago, I had no trouble to wake up Mac Pro every time it was asleep, and I very rarely shut it down (uptime : ... up 3 days, 9:34, restart was done because of a driver update, not a too deeply asleep Mac).
So it really looks like this update fixed the problem for me. I used to and still have, a little chill every morning before I wake it up but because it succeded every times I'm confident that chill will disapear soon
Currently Being ModeratedDec 9, 2012 10:15 AM (in response to SusanLake)
I has a similar issue, but it was resolved by removing an app from the Login Items that was not supported in Mountain Lion.
Here's the discussion with the details (Dec 9, 2012 9:01 AM (in response to sleepystu)):
Currently Being ModeratedDec 9, 2012 10:54 AM (in response to laurent demaret)
Is 'wake for network access' solved too?
Whilst the nvidia update solved the sleep issue for me, the network access is still a no go, which isn't much use as it's my aTV server.
Currently Being ModeratedDec 9, 2012 8:17 PM (in response to KVDB)
That's right, that's why I still have a little fear when I press a keyboard key in front of the blackscreen but, for a week now everything is fine and the Mac Pro wakes up.
Mac-Pro-du-Bureau:Downloads ld$ uptime
5:07 up 3 days, 20:50, 2 users, load averages: 1.38 0.98 0.72
There will be four days in a couple of hours since I restarted it and it was for a driver update, not a black screen. Before that it stood 3 days with the update and without any problem.
So maybe it is not solved but it does look like it is for me. I'll post here if I have anew black screen of death.
As for Wake on lan I don't really use it so I can't tell.
Currently Being ModeratedDec 12, 2012 10:15 PM (in response to faneuil)
Well it is the first in the list of the downloads at https://developer.apple.com/downloads/index.action !
btw, nearly a week (in one hour w/o trouble now
Mac-Pro-du-Bureau:~ ld$ uptime
7:14 up 6 days, 22:57, 3 users, load averages: 0.66 0.66 0.67