Imac freezes in sleep mode

Ever since installing Lion my Imac freezes when in sleep mode. Has anyone had the same problem and been able to fix it

Yes, I have the same problem sometimes, along with numerous others. It appears to be a bug with Bluetooth failing to wake up.
The 'fix' that works for me and others on here, according to responses on the forum, is to go to System Preferences>Energy Saver and set 'Computer sleep' to 'never'. For me, this provides a totally reliable solution that I can live with until Apple come up with a fix (hopefully).

Similar Messages

When my IMac awakes from sleep mode, the password login screen freezes and no cursor appears.

Hello! When my IMac awakens from sleep mode, my log in screen is frozen (I can't type anything) and there is no cursor.
I can turn the computer off and on again and then I have an active log in screen, but if I walk away from the computer and it goes into sleep mode and i have the same problem trying to bring it back from sleep mode.
Thoughts?

Hey Kristogirl,
I understand that when waking from sleep mode, your iMac freezes. Try executing these two troubleshooting steps:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
OS X Mountain Lion: Reset your computer’s PRAM
http://support.apple.com/kb/PH11243
If neither of those help the issue, I would follow the steps in the next article, specifically the "If the issue occurs in various applications, or in Mac OS X" section:
Mac OS X: How to troubleshoot a software issue
http://support.apple.com/kb/HT1199
Welcome to Apple Support Communities!
Best,
Delgadoh

What do you do when you forgot ur login password but it's your imac is on sleep mode

What do you do when you forgot ur login password but it's your imac is on sleep mode?

Hi,
I am posting this as an information exercise and not a criticism.
Most Forums now have a Recent Users Tip section above the Post New Topic link and the Topic List itself.
In some cases the info you want is there.
I hope you and others find this useful.
10:43 PM Saturday; January 30, 2010
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

Ever since my iphoto library crashed (ran out of space without warning) my mcbook pro has been slow, unresponsive, freezes in sleep mode and won't restart... please help.

Hi everyone
Ever since my iphoto library crashed (ran out of space without warning) my mcbook pro has been slow, unresponsive, freezes in sleep mode and won't restart...
I've since backed everything up on an external hard drive, removed the corrupt library, even reinstalled the operating software and there is now hardly anything on the hard drive, it still runs painfully slow. If I close the lid which puts it in sleep mode, it either doesn't go into sleep mode but instead the battery just gets drained and I find it completely empty of power (it won't start again unless plugged in), or it goes into sleep mode but just freezes when I try to reopen.
In iphoto (reinstalled) but even other applications it is painfully slow, not like a mac at all!
I am trying to go to genius bar with it but thinking maybe someone in this forum can help...
Many thanks
Andre

Have you tried SMC and PRAM resets?
http://support.apple.com/kb/ht3964
http://support.apple.com/kb/ht1379
Ciao.

Imac freezes after sleep

Just 4 days ago, I noticed that my iMac freezes after sleep, I haven't added or altered any programs nor downloaded any new software.
System was working perfectly prior to this.
Any ideas? My iMac is a 21.5 inches, 3.06 GHz Intel 2Duo, 4GB 1067 MHz DDR3, 500GB HDD
Thanks

Just 4 days ago, I noticed that my iMac freezes after sleep, I haven't added or altered any programs nor downloaded any new software.
System was working perfectly prior to this.
Any ideas? My iMac is a 21.5 inches, 3.06 GHz Intel 2Duo, 4GB 1067 MHz DDR3, 500GB HDD
Thanks

How can I wake my iMac up from sleep mode? Can I do it via iPad?

How can I wake my iMac up from sleep mode? Can I do it via iPad?
I've set the "Wake on Demand" in the system preference, but don't know the way to wake it up.

It wakes up automatically in response to requests for certain sharing services.
About Wake on Demand
Search for an OS X application called "WakeOnLAN." Search the iTunes App Store for iOS apps with "wake on LAN" in the description.

My iMac goes into sleep mode, won't come out until I unplug and replug the computer then hit the power button. Just hitting the power button alone won't restart the iMac.

My Imac goes into sleep mode but won't come out. The keyboard/mouse won't rouse it and the power button won't do it either. I have to unplug the computer, re-plug it in and then hit the power button. Help?

I looked around the internet and found an old post that seems to have solved the problem. I had a relatively new USB port (powered) that I unplugged and, ta da, the problem disappeared. I'm not sure why this happens (I'm not a tech person) but it seems like this should have been worked out in testing somewhere.

Mountain Lion Freezes From Sleep Mode

It seems like Mountain Lion is going into this "kernel" panic mode after I try to bring my computer back from sleep mode. That thing everyone a lot of people talking about where it locks up and you can't force quit anything or do anything except watch the spinning beach ball and move between open applications.
These
Model Name:          iMac
Model Identifier:          iMac11,1
Processor Name:          Intel Core i7
Processor Speed:          2.8 GHz
Number of Processors:          1
Total Number of Cores:          4
L2 Cache (per Core):          256 KB
L3 Cache:          8 MB
Memory:          8 GB
Processor Interconnect Speed:          4.8 GT/s
Boot ROM Version:          IM111.0034.B02
SMC Version (system):          1.54f36
Hardware UUID:          E1ECD31D-0FEF-5073-9ABE-F9BB5C19F503
For what its worth I have tried removing all peripherals and see if it does it and it still does it.   This behavior doesn't happen to me at all while using the machine normally, only when I am coming back from sleep mode.   When I upgraded it didn't list any incompatible software.    Also I am noting that after a few trys I can relaunch finder but the spinning beach ball remains.   I was thinking that it was something like Windows Explorer crashing but it seems lower level problem then that.   There is something hanging and it doesn't seem like an application.   Seems like something in the OS, well, obviously because this wasn't happening before I upgraded.   I am just going to shut my machine down after I am doing using it for now so I am not hard resetting it four times per day. Has anyone else seen this behavior?

Okay, it has been over 30 hours since my iMac has done this.    It doesn't have that problem where it sits and spins any more.   My workaround is to go into System Preferences, Energy Saver, and slide the Computer Sleep all the way to NEVER.   I still put my display to sleep same time though. And I also uncheck Put Hard Disks to Sleep When Possible.    That seems to have done the trick for me.    I have done nothing else to remedy this and my rig would freeze up on my three times per day so there you have it.    Hopefully they will fix whatever issue is plaguing the sleeping computers.   I know there are alot of them out there set that why by default.

CS5.5 Master Collection/Lion/iMac freezes after sleep

In brief, looked at all the discussions, tried deleting the appropriate plists and so on, but I still have problems with photoshop, illustrator and indesign crashing/freezing randomly after I wake my iMac from sleep mode.
Everything is up to date, drivers, scripts etc. I have had Lion and CS5.5 co-existing happily for a while problem free, its only been the last 3 weeks that I have noticed the problem. If anyone has any solutions, Im all ears.
Steve

Wow I have had a couple of days off and I see the discussion has advanced. I will upload a crash report next time it happens. Looking over the responses, Suitcase Fusion 3 is another culprit I have suspected of bringing on the freeze. Also yes it is mainly with Indesign and Illustrator that the freeze happens but Photoshop has frozen too but not as much. A typical scenario would be I leave my desk for 10 min or so and come back, wake my screen from sleep via the keyboard, only to find that one of the programs I was just using let say Indesign would be frozen with the spinning beach ball of doom. I would then command tab to illustrator only to see the same thing has happened to illustrator. Now Photoshop in this case would be a 1 in 4 chance of the same thing happenning at the same time. Now the unusual thing is that it doesn't always happen. I could go for a couple of days with no problems. I use the programs quite equally in a given day. Ive just got back into the habit of saving every time I get out of my seat, like back in the old days. Over the next week Ill monitor the behaviors of the programs and report it. As I am writing this I have just received an Email from Extensis saying there is an upgrade to suitcase fusion 3 14.2.0 with a whole lot of fixes. I'll give that a go as well.
As far as vagueness goes, the main use of these programs are for creative minds who have their minds fixed on creative problems and solutions. To take your mind out of that zone and back into an accounting/systematic/diagnostic frame of mind is sometimes hard. I find just navigating through to the right place on the Adobe site's 'help section' frustrating enough for the brain. Ill try harder to be more thorough in future.
Steve.

24" imac goes into sleep mode and lights on circuit flicker

Hi -
I have a 24" imac and have found that when the display goes into sleep mode the lights on the circuit flicker.
I have searched the web and other users have complained of the same issue with no resolution.
Here is a similiar post - https://discussions.apple.com/thread/2606099?start=0&tstart=0.      The resolution is probably you need to get the iMac serviced, what i'm wondering is what is the problem in the imac that is causing the issue.    Is this a defect?
Before anyone questions the circuitry in my house here is what I have verified.
An electrician has come and verified the electric panel is good and all circuit breakers are good.   All circuits in my house are copper, no aluminum.
I can plug the iMac into any circuit and the problem starts right when the Imac's display goes to sleep.     I have owned the iMac for approximately 5 months now (bought it used) and the problem started about a month ago.
Assuming this has to be serviced I dread to wonder the price .
Thanks for anyones help.

The sleep timeout has nothing to do with disk activity. It's based on user input, although some background processes can pre-empt it. If you don't want the machine to sleep automatically, disable automatic sleep in the Energy Saver preference pane.

Portege R30-A freezes in Sleep Mode

Toshiba Portege R30-A
My laptop is only about a month and a half old and ever since I got it, every once in a while when I go into sleep mode it freezes. It acts like its sleeping, the screen goes black, but the power and HD indicator lights are still on and I can hear the computer running
I would press a key or move my mouse and touchpad, and nothing would happen. I would press the power button and still nothing happens.
I have to hold down the power button until it shuts down and then turn it back on, and it tells me the pc was shut down incorrectly.
One time, when I was booting up my computer, I moved it, and it distured the hard drive. If froze up and the pc started making this horrible noise. I thought my hard drive crashed. I had to force it to shut down, and I powered it back up and it ran fine. I don't know if this could have to do with the problem.

see if you can find a situation or sequence that makes the problem occur on demand.
Any luck with this?
I have attached the User's Manual which applies to the European version of your computer..
Portégé R30-A (PT343E-xxxxxx)
..with Windows 7 installed
If you haven't yet, create recovery media. See the section Creating Recovery Media, which begins on p. 5-16 of the manual.
-Jerry
Attachments:
UserManual_win7_EN.pdf ‏2392 KB

PC freezes in sleep mode

Have a new HPE h8-1010desktop which cannot be aroused from sleep mode. Have tried hitting keyboard/mouse or on/off button. Checked power setting and keyboard is set to stay live and shoudl awaken the computer.
When I do a hard reboot the PC will start up but it takes forever.
Never had this problem with any previous PC I have owned.
Suggestions?
V

This HP document might have some good ideas as to why your PC is freezing up.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01896793&cc=us&dlc=en&lc=en&product=5097929&tmp...
Thanks,
GeorgeFN
GeorgeFN
I work on behalf of HP.

'09 MBP freezing in sleep mode?

In the last couple of days, my MBP has been freezing while in sleep mode. At first, it was only when I closed the display--the sleep indicator light would just stay on (instead of fading in and out) or wouldn't go on at all.
Now it seems that almost any time the computer goes to sleep, the sleep light will stay on and the computer won't wake up without a forced restart. Even restarting with the power button takes 5+ attempts before it will work.
Any idea how to fix this or what could be wrong? TIA

Try a SMC reset.
DALE

IMac goes into sleep mode although hard disk is active

Hello,
my Mac has a large task to do - it should rebuild a corrupted iPhoto library which takes a long time.
So I though I leave my iMac running in the night and after it's finished it will activate sleep mode (which is set to 1 hour of inactivity).
However when I leave my Mac it activates sleep mode (after that 1 hour) while the task is still running.
I thought when there's write activity on the hard disk, the sleep mode won't be activated...
What am I thinking wrong or is there a wrong setting?
I'm using iPhoto Library Manager to rebuild the iPhoto database which has no option to sleep after the task is done so here won't be a chance to do that.
Thanks!
Markus

The sleep timeout has nothing to do with disk activity. It's based on user input, although some background processes can pre-empt it. If you don't want the machine to sleep automatically, disable automatic sleep in the Energy Saver preference pane.

My Macbook Pro I5 freezes after sleep mode....help!!.

Please can somebody help me with this problem. I bought my new Macbook Pro three months ago, and this happened two times....I put Macbook in sleep mode and after that it freezes completely. I hear that it is still working but the screen goes just black. No button works and neither the mouse. Everytime I have to switch it off and on with the risk of damaging it. Is there a way to solve this problem?. Please let me know.

Take it in for service while it's under warranty.
+In the future please post in the right forum. This is the MacBook forum, but you state you have a MacBook Pro. There is a separate forum for MBPs.+

Imac freezes in sleep mode

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