IMac (Intel) :: Why Does Computer Turn Black When Wake It Up From Sleep Mode
Jun 19, 2014When 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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Hardware :: IMac 24 Intel Will Not Wake Up From Sleep Mode?
Jan 30, 2008My 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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Nov 30, 2014My iMac wake unexpectedly from sleep mode then goes back to sleep 00:10-00:15 later. Yosemite is current.
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iMac, Mac OS X (10.6.8)
Intel Mac :: Can't Wake Up After Sleep Mode
Feb 24, 2012Mac owner for 2 months now and have had no problems till today...had to reboot to wake up from sleep mode...one time occurrence or start of an issue?
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iMac (21.5-inch Mid 2011)
Intel Mac :: Would Not Wake Up From Sleep Mode
May 5, 2012My Mac would not turn on this morning from sleep mode. I pressed the power button and nothing. Then I did it again and heard the fan shut off inside so I tried again and up it came. Also I cannot wake my Mac up unless I press the power button. I used to press any key on the keyboard or move the mouse and it would wake up, but now that doens't work. I don't know if this could be a reason, but my mother has a horrible habit of unplugging it when it storms. It's always asleep and I've told her not to do that and to make sure it's turned off before ripping the cord from the wall. But she continues to do it when it storms.
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iMac
Intel Mac :: Won't Wake From Sleep Mode
May 28, 2012Computer would only start after sleep mode if I unplugged the power cord. The power button would not do anything, even if I held it for a long time.
Shut down and start up would work normally. Only effected sleep mode.
After much trouble shooting I found that I had a bad USB hub. Everything on the bad USB hub would work fine so I didn't suspect it.
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iMac, Windows 7
Intel Mac :: Wake Up From Sleep Mode Without Any Command?
May 13, 2012For some unknown reason I will put my mac to sleep and at sometimes it will wake up without any command to wake up - why this happens and how to correct it?
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iMac
IMac :: Black Screen Display When Wake Up From Sleep
Dec 21, 2010For 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.
View 3 Replies View RelatedIntel Mac :: Loses Wireless Connection After Wake Up From Sleep Mode
Feb 23, 2012My iMac is set up wireless. Every time it's allowed to go in sleep mode, it loses wireless connectivity. Then, when I wake it up, I must go to System preferences, Network and request it to reconnect to my home wireless network. It always does this successfully, but it's quite annoying that it seems unable to achieve this on it's own. My iPad 2 and kindle can do this, why not my iMac?
Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.3)
Intel Mac :: 2011 Screen Unexpectedly Goes Black (to Sleep), Won't Wake
Feb 19, 2012I'm using an iMac (late 2011) with 10.7.3. I'm doing things on the computer or some process is going on when the screen instantly goes black (no dimming first). If a video was playing, I can still hear it playing, but pushing keys on the keyboard or mouse or pad does nothing to wake the screen. Sometimes pushing the power button a number of times will get the screen to come on, sometimes it won't. When the screen goes black, if an external drive was running and then stops, I can sometimes get the screen to come to live. Sometimes this black screen happens when I'm burning a DVD; when the DVD is finished, I can bring the screen to life. I thought one of my two external drives was bad, so I disconnected it. That seemed to help (though verifying the disk revealed no problems). But a few minutes ago, the screen instantly went black again; no dimming first. There have been times I thought this was associated with a new bit of software, but then it returns even after I delete the suspect software. Sometimes I have to use the power button to shut down the iMac then restart it. Once, I had to unplug and replug the iMac before I could get the computer to respond and the screen to return to life. I don't know if this is a hardware problem (internal or external), a software problem, or some combination...or something I haven't thought of, at all.
Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.3)
Intel Mac :: When Computer Goes To Sleep It Will Not Wake Up
Feb 1, 2012When my computer goes to sleep it will not wake up, and I have to shut down using the power button on the back and then restart. I called support and they advised me that this only happened when the computer went to sleep on it's opwn but not when you manually put it to sleep, But that proved not to be true. It will not wake up under either situation? The support persontold me to logonto applke and re-install the sytem software which I have done but that did not cure the problem either. I have my preference set to never sleep. I am ar]t a loss as to what to do now as when it goes to sleep or I put it to sleep i sometimes will not start up even after shutting down and restarting.I am on 10.7.2?
Info:
Imac G5, Mac OS X (10.7)
Intel Mac :: Computer Does Not Wake From Sleep?
Mar 29, 2012Computer does not wake from sleep mode
Info:
iMac, Mac OS X (10.6.8)
IMac :: Computer Goes Into Sleep And Wake Up Automatically
Dec 15, 2009I 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.
IMac (Intel) :: Black Screen On Wake - OS X 10.9.3
Jun 1, 2014This just started yesterday (May 31st). I keep everything updated as it comes out and nothing new has been installed in the last couple of days.
When I need I wake up my iMac (now requiring a keystroke or mouse press instead of just moving the mouse), the screen comes up black, but the cursor is there and moves around fine.Â
It stays black for a while (15 seconds or longer, but it feels like forever) and then it finally comes up completely.Â
Info:
iMac (27-inch Mid 2011), OS X Mavericks (10.9.3)
Intel Mac :: Computer Sometimes Turns Off When Is Sleep Mode?
May 27, 2012My computer sometimes turns off when in screensaver/ sleep mode. Then it doesn't want to turn back on. It eventually does. It's annoying!
View 3 Replies View RelatedIntel Mac :: Internet Disconnects When Computer Goes Into Sleep Mode
Jun 7, 2012This becomes a problem when my wife wants to face time me from her Ipad and the Imac is sleeping.
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iMac, Mac OS X (10.7.3)
OS X V10.7 Lion :: Imac Intel 27 In Does Not Wake From Sleep?
Apr 2, 2012Ever 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)
IMac :: Computer Crashes And Loses Hard Drive When Goes Into Sleep Mode?
Dec 21, 2009I just had the original 300 GB hard drive fail in my aluminum 24" inch iMac running the latest update of Leopard. I wasn't able to save it using diskwarrior (diskwarrior said it was some sort of mechanical failure) but I was able to recover most of the data from it by booting from an external hard-drive.
So I went out and purchased a brand new Western Digital Caviar Black 1TB drive. The install went fine, it found the drive partitioned it and installed Leopard successful. Then is crashed and disappeared when I left it alone to run all the software updates. I came back and the computer was stuck on "Restart Required" after downloading all the updates. I went to hit restart now, and the system just hanged, wouldn't do anything. So I hard powered down the system and restarted it. It came up with nothing, just stuck on the White Screen of Death. So I plugged the external drive back in and booted from it. Mac OSX couldn't find the drive and diskwarrior would crash if I tried to run it. I tried to boot up from the OSX start-up disk and it couldn't find the drive either.
So I took the case apart and made sure all the connections were solid and the drive was mounted correctly. Everything looked fine so I plugged it in and it started up fine. Finished the updates and the iMac ran great.
So I thought maybe it was overheating, so I've installed smcfancontrol and started to monitor the temp of the drive. I also took the mac apart again and sucked out any dust in the fans or vents. The drive never goes over a 105 F, so it doesn't seem to be overheating.
However, this is where the problem is consistent: everytime the iMac goes into sleep mode, it crashes and the iMac is unable to find the hard-drive again. Unless I unplug it completely for 5 minutes or so. Once I unplug it, it finds the drive and operates like a champ.
I think maybe there's an issue powering the drive back on? Anyone have any ideas?
And my follow up posting later that day:
Quote:
So I ran some tests just to see if was an overheat issue, hard drive malfunction, or sleep issue. I decided to start encoding a video, pulled up Word, Power Point, Excel, started downloading all 6000 mail messages off my server (I never delete my e-mail :-/), also started installing iLife 09, and pulled up a bunch of webpages in Firefox with multiple tabs.
However, I shut off all sleep mode options on the hard drive. I let it run for an hour and came back. Everything is fine, hard drive isn't locked up and smcfancontrol shows the hard drive running pretty hot (115 degrees) but not so hot I'm worried. So it's definitely something to do the hard drives going into sleep mode and not powering back on. It's also weird that I have to leave the computer completely unplugged for 10-15 minutes before the drive is recognized again.
So turning off sleep seems to be my work-around, however, this shouldn't be a long term solution. I'm worried that there is a bigger issue with the iMac, but I'm not sure what would cause this. I've been a PC guy for years, this was my first Mac, and honestly I don't know enough about the inner workings to narrow this down. I would assume this would have to do with the motherboard in some way? But I'm not sure how you would even test it.
Mac Pro :: Restarts When Wake Up From Sleep Mode
Jan 13, 2008I have never had a Mac Pro before, but I have owed 2 Imac's and a power mac and 2 MacBooks. The issue I am having is when I put the machine to sleep when I wake it back up it is like it does a restart. It does not start me back up where I was before.
View 24 Replies View RelatedOS X :: Black Screen When Wake From Sleep
Mar 10, 2010When I wake from a long sleep, my screen comes on but everything is black. If I move my mouse around, the tiles behind the pointer switch over to whatever app is open. When I invoke expose/spaces, the screen fixes itself and displays everything.
View 1 Replies View RelatedMacBook Pro :: Wake Up From Sleep Mode Right Away Risky
Dec 20, 2010If I put my MBP to sleep (by closing the display) and then decide to use it right away (in a minute or less), are there any risks to the hard drive involved or any sort of issue?
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Apr 20, 2012When I close then open the lid on my MacBook, it will not wake up from sleep mode. I have to reboot by holding down the power button for 10 sec. When it restarts, it takes a long time to get past the gray screen with the apple logo. I also have this same problem when it goes into sleep mode, when left idle. I have since changed the settings so it will not go into sleep mode when idle in system preferences. I have reset PRAM and SMC, but the problem still persists.
Info:
Macbook (13-inch early 2008), Mac OS X (10.5.8)
Mac Mini :: Does Not Wake From Sleep - Stays Black
Jul 2, 2012I recently purchased a Mac Mini at the Apple store. I'm using an Apple bluetooth keyboard and trackpad. Problem is, when the mini goes to sleep, it won't wake back up. Nothing I can do apart from a hard restart by pressing the start button will wake the computer up. I don't know what to do to fix this. Is it something in settings?
Info:
Mac mini, Mac OS X (10.7.4)
Power Mac G5 :: Wake Up From Sleep Mode Causing Crashes
Oct 20, 2007I've been fighting bad sleep crashes for over a year. Sometimes it would freeze when it started sleep, sometimes when trying to wake from a sleep. I've spent countless hours researching the problem, reading everything on the boards. I tried resetting the PMU, turning off Bluetooth, removing all USB, and all of the other suggestions. Nothing alleviated the problem. Last week I replaced the lithium battery on the mother board because it wasn't keeping the correct time. So far it is sleeping and waking perfectly for the first time in ages. No more freezes or jet engine fans. I have my fingers crossed. Power Mac G5 dual 2 GHz, purchased June, 2003
Information:
Dual G5
Software :: G4 Powerbook Wont Wake From Sleep Mode?
Sep 11, 2008My G4 powerbook (running Tiger) seems to be stuck in sleep mode. I turned it on and the screen remained black but the sleep button is flashing on the front.
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Mar 9, 2012In the last 2 months or so, I have seen my MacMini 2011 OSX 10.7.3 crashing withing a minute of wakeup, after sleeps of more than 2-3 hours.Â
Sometimes the Black screen occurs almost immediately, sometimes it takes up to a minute after the desktop appears (after logging in). This did not occur until I got 10.7.3 and only within the last 2 months.
Info:
MacMini 2011 i5, 8GB, Radeon 6630M , Mac OS X (10.7), iPhone4; headless dual G5 via FW800
OS X V10.7 Lion :: Display Remaining Black After Wake Up From Sleep
Jun 14, 2012I have very recently upgraded to Lion on my late 2009 Intel Core 2 Duo iMac. When the machine goes to sleep on wake up - instead of going to the log on screen, the display remains black but when I move the mouse the display creates a grey pixel trace wherever the pointer should be. I also end up with the desktop clock in the top right.
To log on, I have to literally "colour in" the area where my profile icon should be which enables me to input my password. Also, on wake up, any applications that I had open like Safari, Word, iTunes etc are all closed and not open in the dock. On a separate matter, when this happens I cant wake my imac up to access my itunes library for home sharing on my ATV3 and 4S.
MacBook Air :: Display Only Black Screen And Pointer When Wake Up From Sleep?
Aug 23, 2014my macbook air 13 display only black screen and pointer when wake up from sleep. its not frequently happen. to become normal it take 10-15 sec, is it hardware problem or software problem?
Info:
MacBook Air, OS X Mavericks (10.9.4)
Intel Mac :: Why Should My IMac Switch Itself Off When In Sleep Mode
Jun 2, 2012My iMac is some 2 years old and have never had this problem before but twice in the last week it has failed to awake from sleep mode and I have had to hold the start button to 'wake' it up. It then goes through the usual procedure that transpires afte 'logging off'
Info:
AppleTV 2, Mac OS X (10.7.3), I have an o2 router
IMac (Intel) :: Cannot Stay In Sleep Mode?
Jun 25, 2014How can I get my iMac to stay asleep?
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