Desktops :: IMac (sometimes) Doesnt Wake From Sleep?
Dec 4, 2009
For the past few months i've been having issues with my imac 2.66Ghz 24 inch. I'd say almost half the time when i put my imac to sleep it doesnt wake up no matter how many keys i press and it just stays stuck on a black screen. I know that when you put the computer to sleep you hear absolutely no noise however in this case i hear a slight fan noise despite it 'sleeping'. When this happens i always have to use the on/off button to do a reset. What seems to be the issue here??
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Nov 30, 2014
My iMac wake unexpectedly from sleep mode then goes back to sleep 00:10-00:15 later. Yosemite is current.
Info:
iMac, Mac OS X (10.6.8)
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Sep 1, 2006
Having some trouble with my iMac (the version right before the intel iMacs came out. further info can be provided if needed). Running all the latest software updates etc. When I put the iMac to sleep, it goes off as normal. With the usual white light. However, when coming to wake the iMac it won't respond to the keyboard or mouse. I have to shut it down at the power button, and then turn it back on.
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Apr 8, 2010
I have an Intel Imac G5 2.66 gHz 2 core duo running 10.6.3. I am unable to get it shut down or sleep. Choosing either results in the display blacking out, the fans run for about 1 second and then everything come back on as if nothing has happened. I've reset the Pram and Vram, disconnected all USB and Firewire devices, tried it with and without file sharing and Airport operating. A 'hard' shutdown with the power button works fine. I have checked for any firmware updates but mine is fine. This happened once before and clearing out some files from deleted apps cured the problem but it's back now.
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May 23, 2006
Does anyone know if it's possible yet to wake an iMac from sleep via the internet? I'd like to use remote login via SSH to an iMac from an ibook, but it is quite useless unless I can wake the iMac from the internet.
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Jul 25, 2010
My iMac goes to sleep and doesn't want to wake up. I have to restart the ugly white thing to continue using it.
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Aug 13, 2010
I have an older iMac (MA589LL) that I recently upgraded to 4GB and Snow Leopard which is running beautifully. I do have an issue with it though, and it's been occurring for a while: Whenever the machine goes to sleep and I wake it up, the monitor turns on just fine but after about 5 seconds it goes back to sleep. I have to repeat this about 3 times and then it is fine. It's an annoying issue but not a deal breaker as I can just turn it off. I searched for sleep issues/turn off issues and have not found anything.
NOTE: Issue occurred before the upgrades. I've also tried resetting the PRAM and NVRAM. I have also used different keyboards/mouses.
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Dec 14, 2010
Every now and then, my 2010 27" iMac won't wake up from sleep by pressing a button on the keyboard or the Magic Trackpad. The computer won't even respond to a tap of the power button so I end up having to hold it down for a hard reset.
It seems like this only happens when the Mac sleeps with an application running (usually EyeTV 3). Is it an issue where the bluetooth keyboard and trackpad aren't communicating with the Mac properly?
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Dec 15, 2009
I had my iMac 27" for two months, and I am very pleased with the machine - except for one thing. When I put it to sleep, the computer just go to sleep in a couple of hours and then return to no-sleep. It started just after I bought the computer. I always set my computer to sleep, and so I did even then - but the first thing I noticed was that the hard drive was started during the first night. Strangely, I thought and put it to sleep again. Then I fell asleep, but when I woke up next morning the computer was on.
Then I wrote on another forum and they told me to check out: Wake up in network access, which I did. And then it got better. Now the computer has been without problems for a month, but then a few days ago it came back. This box is still check, so it can not have anything to do with it this time. I've also tried turning off all programs, the keyboard and mouse when it has gone down to sleep, but it still restarted. What is wrong? Please run with Sleep and it is a program that will prevent the computer to wake from sleep, but not:
2009-12-14 00:12:00.870 Please Sleep [8574:207] Sleep notification received from the system
2009-12-14 01:12:38.522 Please Sleep [8574:207] Wake notification received from the system
2009-12-14 01:13:53.122 Please Sleep [8574:207] Sleep notification received from the system
2009-12-15 00:50:54.355 Please Sleep [6883:207] Application started
2009-12-15 00:50:54.357 Please Sleep [6883:207] Application is enabled
2009-12-15 00:51:57.358 Please Sleep [6883:207] Sleep notification received from the system
2009-12-15 04:05:05.591 Please Sleep [6883:207] Wake notification received from the system
2009-12-15 05:22:18.061 Please Sleep [6883:207] Sleep notification received from the system
2009-12-15 07:27:34.597 Please Sleep [6883:207] Wake notification received from the system
What can I do? Can I submit it to Applecare? Some peoples say you do not have to turn off a Mac, but I want to put it to sleep, but it starts up the next day. I've also restarted the SMC, but it gave no effect.
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Apr 11, 2010
After my 27" i7 wakes up from a long sleep (roughly over 1.5 hours), something very odd goes on with my color profile and/or screen. Approx. 5 second or so after waking, the screen color appears to wash out quite a bit. You certainly have to be quick to notice it, but something is definitely going on.
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Mar 24, 2012
This problem started after a power surge a few weeks ago. The surge protector fried, but seemed to save the computer in the process. Symptoms are:If the Mac goes to sleep, the fans eventually go in hyperspeed mode and it's impossible to wake.Boot time is over 6 minutes. 1.5 minutes on the gray Apple, then 5 minutes on blue screen.In verbose mode, I get some IOKitWaitQuiet error just before the blue screenI repaired permissions, checked the disk with Disk Utility, and zapped the PRAM. Here's the console report of a restart. The blue screen was between 8 and 8:05.
3/24/12 7:59:15 PM com.apple.loginwindow[39] Shutdown NOW!
3/24/12 7:59:15 PM com.apple.loginwindow[39] System shutdown time has arrived
3/24/12 7:59:15 PM com.apple.SystemStarter[34] Stopping Adobe Version Cue
3/24/12 7:59:15 PM com.apple.SystemStarter[34] Stopping Adobe Version Cue ...
[code]....
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Apr 2, 2012
Ever since I bought and downloaded OS Lion, whenever I put my mac to sleep or it goes to sleep on its own it occasionally won't wake up from sleep. It has to be manually rebooted. Is anyone familiar with this problem. Apple must know about it by now. I'm not lugging my 27" iMac into the apple store to have them look at it unless it won't reboot. Hoping it doesn't come to that...anyone familiar with this or have ideas on how to fix it? I don't know if it's a 3rd party software issue or just the OS.
Info:
iMac, Mac OS X (10.7.3)
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Sep 1, 2014
I use sleep from Apple pulldown menu; after a while the computer wakes up, after a few minutes it shuts down. New iMac, 10.9.
Info:
iMac (27-inch, Late 2013), OS X Mavericks (10.9.4)
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Sep 9, 2009
Just after my warranty expired I developed what I suspect will be an expensive problem. Upon awakening from sleep my computer cannot recognize the internal HD. I total freeze. If I power down & reboot everything works. If I boot the computer from an external HD clone of my internal HD a can put the computer to sleep and wake up without a problem EXCEPT:When I do this the computer removes the internal HD icon from the desktop and Iget a dialog box informing me that the internal HD was improperly disconnected.
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Jan 30, 2008
My iMac is about 4 months old and about twice a month after sleeping overnight the computer will not wake up. After several attempts pressing keys on the keyboard and clicking on the mouse, I have to unplug the Mac and then press the start button on the back
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Dec 21, 2010
For the past few weeks it has been going to a black screen when trying to wake it up from sleep. Either I've put it through too much work lately editing all these photos and its really tired. So, often it wakes up normally and functions fine, well, not really. It is seemingly very slow. It requires a lot of time (more than before) to open up a program or it gives me the "spinning wheel of death" when trying to go to a different page on the internet or open up a folder on my desktop. Amongst other things that require it to think. So It's just a lot slower in general than before.
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Jan 21, 2009
I'm experiencing very annoying sleep/wakeup problems with Mid 2007 iMac. I think it started after 10.5.6 update.
1. iMac does not go to sleep according to the Energy saving settings, this was actually from the day one. It goes to screen saver, display sleep, but not complete sleep.
2. Since automatic sleeping does not work, I put it to sleep manually by pressing Power button. but in this case it sleeps so deep, that it does not wakeup. The only way to bring it back is to hold the Power button to complete OFF and then power back UP.
I tried, PRAM and permissions tricks, nothing seem to help.
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Jan 5, 2010
i just bought the imac 21.5 inch with ati radeon 4670 and the base spec. after few hours of playing with this new toy. i realise that when you press the shutdown button, it will put the imac to sleep instead of showing the shutdown/restart option that i have on my macbook. Is there any way to make it work like a macbook power button. secondly, whenever my imac wake up after sleeping, the fan will run faster and automatically went to sleep again. this issue just keep repeating itself. i have no choice but to shutdown the imac and boot up again. Thirdly, i try the machine on WoW and i realise that the sound is rather choppy
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Apr 6, 2012
Imac completely dead and not able to wake up after putting to sleep.This is a new error on top of many others.Very annoying one has to reset and restart to overcome something that is supposed to work o.k?
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Jun 19, 2014
When I need to go somewhere or just eat lunch, I put my iMac to sleep. After that, when I come back to wake it back up, it stays black.
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Mar 23, 2012
i brought my mbp in aug 2011 from the usa without apple care. i am currently living in saudi arabia.i bought apple care from amazon usa and they shipped it to me ,, since apple store doesnt accept foreign credit cards and doesnt ship international.apple store saudia arabia doesnot have apple care.
on trying to activate apple care on my computer it sayss that it cannot be activated from this region
Info:
MacBook
Pro, Mac OS X (10.7.1), 500 GB HDD 8GB RAM
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Jul 23, 2009
I have an intel based mac pro running tiger. When it falls asleep if it's asleep for an extended period of time...say 45 minutes or longer, it won't wake up. I have to manually power it down. If it's asleep for less than 45 minutes it wakes up fine.
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Feb 2, 2012
I have a MacPro Dual 3GHz, running OS 10.5.8 and when my Mac goes to sleep, it won't wake up. Fans speed up and light blinks, but I have to do a hard reboot.
Info:
Mac Pro, Mac OS X (10.5.8)
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Jan 6, 2011
My Mac Pro 1,1 with a recently installed 120 GB OWC SSD Rev. 343A has been locking up (spinning beach ball) mostly on the "Enter your Password" screen when waking up from full sleep or displays going to sleep. I have to perform a hard reboot then it works fine, til it falls asleep and I have to wake it up. If I put it to sleep via the Menu it wakes up normally without issue. I've run Disk Utility, says it's fine. Repaired permissions. Ran the daily, weekly and monthly scripts. Cleaned my Cache with Onyx (not sure what else I could do with it)
Disksomnia is installed for FCP, to keep the disks spinning, never was a problem before. The SSD is the only major change in recent times.
Any knowledge or thoughts as to what I could do to find the problem?
Computer's up to date OS wise, 10.6.5, 12 GB Ram, Seagate 750's HDD's in the three other bays, Blackmagic card PCI, eSATA extender cable for two OWC Enclosures, other FW800 external HD's, NVIDIA Geforce 8600 GT & 7300 GT video cards for three monitors.
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Jul 11, 2007
I put my 3 day old MBP to sleep last night with a 90% battery level (with the A/C adapter unplugged). I had calibrated the battery the day before. This morning, when I opened the lid, nothing happened. I thought this was odd. I then pressed the power button and heard about 1 second of the startup tone and then nothing. I repeated this twice more with the same result. I then plugged in the A/C adapter and the MBP booted up. The battery level was 86%. What do you think has caused this? Do I have a defective battery or something more serious?
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Feb 3, 2009
However, twice now when I've run the battery down (as recommended to keep the battery healthy), and then put it to sleep and plug it in, when I try to wake it up later, it won't start. Powering on and off just lead to a little "click-whirr" and the power light pops on and off, but no action. I called applecare and they said to unplug it, take the battery out, leave it out for a bit, then put it back in, then plug it back in, and restart it. It worked (although the second such crash, it took two tries for unclear reasons). Needless to say, this is a bit frustrating. Is this a known problem? Should I do something to avoid it? Is it a lemon?
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Oct 29, 2009
My macbook pro went to sleep last night but is not waking up this morning. The hard reset with the powerbutten is not working. Removing the battery of pram aint working either.
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Nov 10, 2009
Preamble: My Quad 2.8 Mac Pro (Snow Leopard) repeatedly would not wake up from sleep. Apple Care had me reset the PRAM and maybe a couple of other things..(heck it was a couple of days ago...) and then they scheduled a repair tech to swap out the Radeon 2600 video card today. My question: If I want to have a back up video card on hand from now on, please advise model. Other than normal word processing, surfing, emailing,I only do basic photo editing with Photoshop Elements, and will be copying my 35 mm slide collection, so I don't need any that fancy, I imagine.
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Mar 30, 2010
I have the 'dreaded' LG L246WP connected to my early 2009 mac pro via DVI to HDMI cable. Settings have always been weird on this configuration because OSX doesn't recognize the 1920x1200 native resolution unless I select 'overscan'. Now with 10.6.3 it boots up fine with the settings I've been using for over a year. However, I let my monitor go to sleep, and when it wakes up the screen is totally off-center to the left.
Also, in the preferences panel for the display, sometimes the available resolutions 'disappear' as I click them...(the value of the item in the list changes from say 1600X1200 to 0x0). I called and opened a support ticket. Their suggestion was to re-install 10.6. This may be the straw that breaks the LG's back.... Problem is now I have to research new monitors!
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Mar 12, 2012
I have a white 13" Macbook 4,1 running lion that will not wake up from sleep. I have to shut it down with the power button and then turn it back on. Runs normally when on. The white status light in the bottom right goes on when i put it to sleep and is off when it is up an running. I have tried a smc reset, PRAM reset, energy saver defaults, reinstalled Lion, deleted bluetooth files, Firewire .kext files, usb .kext files. Booted up off a separate harddrive. .wondering if theres anything short of sending it in that i haven't tried??
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