Currently Being ModeratedAug 25, 2012 12:19 PM (in response to perthone)
I have an interesting variation to this issue. I have a MBP 2010 connected to external monitor. I'm always working with a closed lid.
Sleep problems happen always when gfxCardStatus is running. After quitting it problems become intermitent. When they happen, I need to unplug external monitor, wake MBP by opening the lid, put it back to sleep and connect monitor again. It works well for few hours and then happens again. In my case sleep problems appeared for the first time yesterday, just after upgrading to 10.8.1.
Currently Being ModeratedOct 29, 2012 6:07 AM (in response to perthone)
My MacPro has the same problem. It does wake up, however, after a while. With Lion I just had to press the space bar and the computer woke up. Now I press the space bar and nothing happens. So I press a lot of other buttons and nothing happens. I press the startup button and nothing happens. Then a wait a minute or so and the computer wakes up, automatically.
Other things have changed sinze the update. It used to wake up from sleep automatically after I put it in sleep and never went to sleep automatically. Now it does, which can be annoying while I am working with it remote.
Currently Being ModeratedNov 27, 2012 7:27 PM (in response to Bflosoundwavedj)
I finally figured out my issue it was due to a memory chip I had purchased memory for my Mac from best buy and it worked ok in 10.7. But since I upgraded to 10.8 there must be a difference in how the memory chips are made or something they have the same specs. So what I did is purchased 16 gig from crucial memory that stated it was Mac compatible and once I swapped out the memory modules my Mac has been running just fine now for about two weeks now.
Currently Being ModeratedJan 11, 2013 3:57 AM (in response to perthone)
Guys,when you laptop is not awaking from sleep,what's going on with the LED(is it blinking or always on) ?
i've set hibernatemode to 0 and it fixed the problem.
Now i changed it back to 3 and if i close the lid and open it just a few seconds after(not waiting) till it start to blink then my macbook pro is not awaking from sleep,but if i close the lid and wait till the led start to blink and close it then - so after it the laptop awakes from sleep with no problem.
I'will wait a bit and we'll see if it will be ok
Currently Being ModeratedJan 11, 2013 4:35 AM (in response to Kirill B.)
I have the problem with my MacPro, not with the Macbook. The led is blinking, as in normal sleep mode. Of course I can make it not go to sleep, but I don’t like to switch it off and I don’t like leaving it on…
Currently Being ModeratedMar 2, 2013 2:03 AM (in response to perthone)
I had the same problem that my Macbook Air wasn't waking from sleep since I upgraded to Mountain Lion.
And I think I just solved it in my case: I think it is the airport card!
Let me give some background:
My machine is older: I have a MacBookAir2,1 from Mid2009, so the machine is roughly 4 years old now. So I am expecting that I get in trouble now especially with the hardware...
The hardware details are:
MacBookAir2,1 under Mountain Lion 10.8.2 (was an upgrade-install from Snow Leopard)
It has an 128GB Apple SSD (SM128) and the original RAM and Battery (battery now has 940 recharge cycles).
As well as the original AirPort Extreme Card, which uses a Broadcom BCM43xx (v 22.214.171.124.16).
I mention this because my guess is that the problem is hardware related; and my SSD and my battery are now quite old and I would assume worn out... I am still not sure whether they play a role, so please post your hardware specs when you have similar experiences.
Now I did my homework, read the forums and tried different configuration tweaks:
- clean-up of LauchDeamons and LauchAgents to the bare minimum (LittleSnitch, ChronoAgent, Munki)
- reseted PRAM
- reseted SMC
- disabled hibernate mode
- performed a safe boot (holding shift while booting)
But none of these did fix my problem...
In my case, the symptoms are always the same:
I can sleep the machine and immediately wake it again just fine without problem.
But if I let it sit sleeping for a couple of minutes, it wouldn't wake anymore but just show me a blank black screen, power-LED at front are off, but the fans are on and the machine is not visible on the network (my router wouldn't see it).
Even worse, this limbo state would then stay until I hard-resetted the machine by pressing the power button for >10 seconds; meaning even after closing the clamshell again, the fans would stay on and the machine would actually get hotter and hotter over time. Super!
I do not think it is a software problem because (a) even after a safe boot I could reproduce this behaviour and (b) if I just boot the machine up-to the login screen, and then put it to sleep before I even login to _any_ account, it would still not wake a couple of minutes later. So it must be something which is unrelated to any local, user-specific settings or daemons!
Unfortunately, my systems.log does not show any log entries which would give a hint. It just seems to sleep fine - and then nothing is added to the log anymore (the next entry is the reboot after the previous wake attempt went bad).
So when it is no user-setting, and an immediate wake always works, but not if the sleep time is longer, my guess is that it is either a kind of 'deep-sleep' which goes wrong (hence my attempt with disabling hibernate, but to no avail), or some hardware failure which happens when ML tries to turn something off after some minutes and then is unsuccessful to start it up again.
That's when I noticed the WLAN icon on the login-screen... Showing me that it has a network connection immediately after wake and before I typed in my password...
So I wondered what happens if I turn WLAN off?
And guess what:
Since I turn off WLAN before I put the machine to sleep, it comes up very nicely and without problems all the time.
*kocking on wood*
At the moment, the machine is booted normally and I am in my normal user account, I still have hibernate turned off (though I do not think anymore that it is related, but it gives me a nice, much faster wake), and I also turned off both bluetooth and wlan (so airport extreme card is off). I had the machine now sleeping several times already, with the longest waiting time between sleep and wake of 23 minutes. It always woke again immediately without hiccup!
So my tip: Turn off your airport card (both WLAN and Bluetooth) before putting your machine to sleep.
And if it helps in your case too, please post your hardware revisions.
PS: Sorry for the long post
Currently Being ModeratedMar 9, 2013 2:07 AM (in response to floyd42)
Ok, a week later I have to report defeat: The above method (switching off the airport card before sleep) seems to improve the situation, but it does not solve it. I still experience now and then that my MBA does not wake after sleep, even though I had switched off the WiFi card before setting the machine to sleep.
It's quite frustrating...
Currently Being ModeratedJul 18, 2013 2:59 PM (in response to perthone)
My brand-new Mac Mini (OS 10.8) also did not wake up from sleep - or, to be more precise, it took anywhere from 30 seconds to 2 minutes and hitting random keys on the keyboard to wake it up.
On a different discussion board, somebody had suggested that removing their 7-port USB hub fixed the problem. Since I was using a 7-port USB 2.0 hub, I removed it. However, it did not make a difference. Frustrated, I re-connected the 7-port USB hub. But now, the problem is gone - my computer wakes from sleep in a split second (as it should), and I didn't even have to get rid of my USB hub.
I have no idea why the problem is gone, but it is gone!
Currently Being ModeratedSep 19, 2013 1:33 AM (in response to perthone)
I am having similar problems with my 27" 2.8GHz Intel Core i7 OSX10.8.4. My situation is, the computer goes to sleep and I am unable to wake it with a USB keyboard (Apple keyboard) and a USB mouse. When I hit the power button, it wakes but the keyboard and mouse are unresponsive. I disconnect both the mouse and the keyboard from the rear USB ports and reconnect with no affect. It's like the USB just stops working after going to sleep. The USB is still unresponsive even after rebooting the machine. I just get a window pop up saying there isn't a keyboard connected and then bluetooth starts looking for a wireless keyboard.
When this first started happening, I would spend and hour or two restarting and switching ports to no avail. After giving up, I just turned it off. The next day I got up, turn it on and it works. I can use it for hours with no problems. I can connect printers, cameras, you name it and no problems. But the moment it goes to sleep, I'm stuck again with no USB function. I know there's power going to the keyboard because the green caps lock light is on.
So far I've only gotten it to work three times after leaving it off over night for a few days. The third time I've gotten it to work, I turned off the sleep for both the computer and the monitor and just use a screen saver while I'm currently backing up files to do a fresh install.
This problem only started to happen after I updated to 10.8 from 10.6. I tried all the resets to no avail. I called Apple Support but my Apple Care ran out 3 months ago and they said I would have to send it in for the 40,000yen flat rate (I'm in Japan). Hopefully, if it is a software related issue, I can get it fixed with a fresh reinstall.