I have noticed 2 things that may be contributing to this. The 1st possibility could be weak batteries in the keyboard. The 2nd possible cause is losing the network connection. I identified these as possible causes because I had to correct them after a power cycle. However, I can't say 100% that they are the cause as my iMac continues to hang coming out of sleep from time to time and it's definitely annoying.
Update: I changed the keyboard batteries less than a week ago and they are dead. Makes me wonder what is going on with the bluetooth. I've been losing the connection to the mouse a lot lately as well.
Message was edited by: Alan in TX
The weak batteries in bluetooth keypad or mouse is a thought and I am sure losing the network connection is another.
I replaced my batteries recently and also maxed out the memory in the computer. I had to go away and didn't want to leave the computer in the house with no login security password on it, so after a long gap I am using the login setting again ... no freeze or etchasketch. Don't ask me why or what has changed, I have no idea.
There were so many possibilities, from the Time Machine backups,I got rid of my old hub and bought a new one as that seemed a possibility, the looking for networks thing on the wifi settings, Flash software, to the interval between login and sleep times and so on and so on and reading the other posts it seems clear to me that this is a symptom which doesn't have one cause only.
In between last posting here I have done all the software upgrades too. I see this is endless and ongoing for so many people and it must be hugely frustrating. The role of these boards is slightly unclear it seems to many too. Even though it is on Apple's site it is not moderated by Apple? Do I have that right? And if their staff do look at it, they don't ever comment. It really seems to be a pure 'community' board.
For the record I now use a wired keyboard and an old style wired mouse, the only thing that is bluetooth is the touchpad. I find the wired stuff far more reliable. Joanna in Bristol.
Joanna, I agree with you 100%. What's disconcerting to me and I suspect many others at this point is that Apple has left us to our own trial and error to try to determine the root cause of their product's failure. Remember now, this is not only happening to iMacs and Macbooks, but Macbook Air and Macs. Its a wide spread problem. Again, imagine an Apple product line, who's operating system is based on UNIX at it's core, allowing itself to be compromised and crashing repeatedly. It's unheard of in any organization who uses a number of devices every day to run their business or school or hospital, etc... How can it be that there is no clear and concise solution to our problem(s) posted somewhere in an Apple run and monitored board or other means of communicating to their customers. It's completely upsurd. And, for the record people, this problem most likely is NOT hardware related. Remember, this is happening to all sorts of Mac products, not a single line and not from people who have installed wierd custom problems and stuff. This is happening to good old normal unadulterated Apple OS installed in all of Apple's hardware Mac product line. APPLE, FIX YOUR STUFF!
Vinny from NYC...
What's frustrating is that the issue seems intermittent. If we could find a consistent pattern, the problem may get solved. While I do have VMWare Fusion 4 installed, the VMs are not running. I don't think we can blame it on VMs as others have suggested. It definitely behaves like an OS kernel issue or device driver that is related to the state of a peripheral device. My iMac is a bit over 3 years old and recently has been loosing connectivity to the wireless mouse and occasionally a USB port stops working. I don't have any hubs. But I do have a Cinema display and my time machine backup drive is connected to the Cinema display. Everything was rock solid under Snow Leopard. I'm now on 10.8.3. I don't recall seeing any issues under Lion.
I'm just throwing potential clues out there and hoping one of them helps isolate the issue and Apple fixes it.
Serhatkar, I must apologize to you. Your suggestion seems to have fixed my freezing issue on my Macbook Air. The macbook did not respond for a long time and then suddenly when I pressed the power button (like 1/2 hour later), it came back on again. I don't know why it took so long but apparently the reverting back to an earlier level BIOS update worked. So, it would appear to me that Apple created Snowleopard and tried to take advantage of some functionality resident in the chips on board that didn't quite work out the way they planned. I am not updating anymore (lol) until I get a new macbook or laptop.
Vinny from NYC
I agree. Many issues such as the (past) Photo Booth audio lag, seem to take forever for Apple to fix. The Photo Booth audio lag was finally fixed with the latest ML update but the issue wasn't addressed in the bugs and fixes information related information.
My Late 2009 27" iMac does experience occasional freezes upon wake up, including not being able to connect to the WIFI network (I use Airport Extreme wirelessly for both computers even though I could connect through Ethernet for the iMac). The screen also, on occassion, shows the sign-in and then turns black with only a white cursor visible. At times, this necessitates a hard shut down. It was CTO with 2.8GH Qzuad Core, 8 GB memory, 1 TB HD, 512MB ATI Radeon graphics card,
I have an Early 2011 MBP and have experienced no wake up after sleep issues at all. It was CTO 2.2GHz i7, 8 GB memory, 500 GBSerial ATA HD @ 7200 rpm, HR Display.
So, the problem may be due to many combinations of things but it is true that Apple suffers major lag in doing fixes. I just wonder if issues with Windows products are any faster. I doubt it but I'm not saying that these very irritating issues should be ignored. Apple products are very expensive and there needs to be more direct research and assistance.
My computer also wouldn't start up for an hour after install, but, after starting and then rebooting from Safe Mode, your suggestion seems to have worked. Already I am noticing quicker response time with my keyboard.
I agree that my issue, at least, seems to have been a firmware issue. I did a firmware update last Sunday night and by Monday evening my computer was freezing after sleeping and I have had to reset and restart my computer several times (usually having to do a hard shut down because my keyboard would not type and my trackpad would not work). After resetting my PRAM the computer worked for about 24 hours without restart, but it didn't seem to be a longterm solution. Hopefully the firmware fix will be the longterm solution.
Thanks for your help!
Same issue here. Whenever my fully up to date MBA has been in sleep mode for a long period of time, it hangs for a moment when I open it. I can see the login prompt, but it's empty and unresponsive. If I wait about 10 to 15 seconds, it suddenly becomes active and the example "PASSWORD" shows up in the password field. At this point, I can use the computer as normal. This is without any bluetooth or usb keyboards or mice. Just the macbook in its barest configuration. The whole issue began after I updated to 10.8.3 Mountain Lion.
It's no surprise that so many people have this problem. After all, MacOSX and the hardware configurations it runs on are all proprietary and predictable for the programmers who code for it. If everyone's MacBook Air was fine prior to the upgrade, and the update has resulted in many people reporting the same issue that arose after a software update, then it stands to reason that our hardware is fine and that this is a software issue.
And if it's a software issue, then it's something Apple has the ability to fix. I'd love to see it addressed by Apple and soon.
I have a 2008 MacBook4.1 2.1 GHz core 2 duo 2 GB RAM running OS X Lion 10.7.5 no bluetooth KB. This OS was installed in Jan of 2013 and freezes nearly every time it tries to wake up from sleep mode. I have tried every solution offered on this website, clear PRAM, SMC, SAFE Boot, etc, also ran DiskWarrior, Onyx, Disk Utility, MacHelpMate. Nothing worked. Yesterday in Energy Saver I set "restart automatically if the computer freezes" then did a restart and have not experieced a freeze after waking up so far, even after an overnight sleep. Seems to have worked but needs more time to pass to see if this really does fix the problem. I can't imagine why Apple doesn't fix this.
I also have an iMac 2006 2 GHz core 2 duo 4 GB RAM running the same OS X Lion 10.7.5 it has not had ANY freeze issues after sleep at all.
I also have an old powerpc iBook running Tiger and it never has had a freeze after sleep issue.
Same thing on new air, happened several times already, had to shut down by holding power key.
It seems to me that it happens when computer was in sleep mode not too long (several seconds) and then I try to wake it up it freezes with keyboard light on and black screen.
+1 here, and it's driving me mad!
I use my MBA every day at work and I've found that it 'hangs' if I catch it just as it enters sleep - every time and without exception! I notice just as everything winds down on the screen to enter sleep, and when I tap a key or the trackpad, the whole machine locks up (with the Apple logo still brightly lit).
(It's a mid 2013 MBA with OS X 10.9.1 (13842))
Message was edited by: CertaintyManagement