OS X :: System Goes To Sleep Mode Automatically / Screen Turns Black
Jul 20, 2010
when working on my new Imac sometimes the machine put itself in sleep mode! The screen turns black and I have to enter my password. Sometimes it happens 2 times in 1 minute; other times once in 1 hour.
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Sep 16, 2009
So I have a DYNEX 21 inch HD TV conected up to my MBP via the VGA connection route. My problem is that when I want a program (or more specifically in this case a game) to go into fullscreen mode it automatically goes to my primary monitor and turns the other screen black. I know I can switch the primary monitor from my actual laptop screen to the TV however I just want the game to be full screen on the TV while still having access to my dock and everything on my laptop.
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Nov 24, 2006
I have a little problem with my last generation 12" Powerbook G4. Sometimes, after I wake it up from sleep mode, the screen has a kind of blue tinge to it, as if there was some blue transparent plastic stuck to it. After I reboot, it's just fine.
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Dec 3, 2014
I recently had my screen replaced because of a crack. Now I find when I open the laptop to use, after being on sleep mode. It momentarily turns blue, sort of flashes/glitches then works normally. Should I be concerned?
Info:
MacBook Pro with Retina display
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Aug 22, 2014
when my macbook pro go to sleep mode and after i try to started it - I got black screen and have a loading cursor mode, If I close my macbook and after 3 minutes open - all working fine!
Info:
MacBook Pro with Retina display, OS X Mavericks (10.9.4)
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Jun 3, 2012
When I open MacBook Pro (in sleep mode) I see rainbow on black screen. I have to keep the power button. I have this problem only when I open (after closing) my MBP. It started after an upgrade HHD to SSD (OCZ Agility 4). SMC reset did not help. I have MBP 13 late 2011 i5 2,4. Mac OS X 10.7.4.
Info:
MacBook Pro, Mac OS X (10.7.4)
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Dec 29, 2009
As of last night, my MBP started acting very strangely. After entering my username and password, it would enter the desktop for a short period of time and then kick back into sleep mode; the screen would turn back to black. Sometimes it will let me stay on the desktop for a long time and other times it will hardly let me stay on the desktop. I called apple support and they had me start the computer in safe mode; even then it occasionally kicks me out.
The tech guy said that it was a "strange software issue" and not a hardware issue. I thought it was a hard drive issue; my hard drive makes an odd sound when it unlocks (a grinding sound), but it has been doing that for quite some time with no issues. I tried to reset the SMC and it didn't do anything.
How should I remedy this problem? Is this a hard drive issue? Hard drive failure? Has the grinding sound finally caught up with me? I am running OS X; not leopard or snow leopard. I know I need to upgrade, but this shouldn't be happening.
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Apr 15, 2009
my monitor turns off but my computer won't go into sleep mode, both are set to turn off at exactly 45 minutes of inactivity.
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Apr 15, 2009
my monitor turn's off but the computer never goes into sleep mode. I've got both my monitor and computer set to turn off at 45 mintues of inactivity. I tried reseting the pram with no success. I deleted the com.apple.PowerManagement.plist file. but it still doesn't turn off, only the monitor. I've set it to 1 minute but only the monitor will turn off. Manually putting the computer to sleep work's fine.
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May 27, 2012
My computer sometimes turns off when in screensaver/ sleep mode. Then it doesn't want to turn back on. It eventually does. It's annoying!
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May 15, 2010
I am new to this forum, but hoping I can get an answer here. When placing my Macbook Pro in sleep mode by closing the lid, it goes into sleep mode, but immediately turns back on (with the lid closed), then after a short time goes back into sleep mode and then immediately turns back on. It keeps cycling like this. Any clues to why it will not stay in the sleep mode?
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Sep 24, 2008
I had this problem since I used the power schedule to shut down my mac a day after I went on vacation. Now every morning I see the macpro awaken from sleep mode. The mouse is in it's stand so it can't be that. I disabled everything in power settings.
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Nov 10, 2006
My Power Mac G5 does not go to sleep automatically. I had it set to go to sleep after 5 minutes of no activity. At least 5 minutes past but the computer failed to go into sleep mode. What could be preventing from going to sleep after the specified time?
Info:
� Power Mac G5 dual 2.0Ghz
� OS X 10.4.8
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Aug 18, 2010
It happens from time to time when I put the computer into sleep mode and let it sit overnight.
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Mar 5, 2009
My iMac G5 (OSX 10.4) starts up as normal, runs for about 5 minutes and then automatically goes to sleep. It will wake up if prompted, but every time it goes back to sleep in seconds. If left in sleep mode for a few minutes it will wake up again for 1 � 5 minutes before once again automatically returning to sleep.
It is definitely not due to hot corners. I changed the power saver settings several times, restarted and also reset the SMU but with no luck. I�ve also ran an apple hardware test which got the fallowing error code: �2FAN/4/8: CPU Fan�
Anything else I can try besides taking it in to an Apple service provider?
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Jun 1, 2010
I just got myself an mac mini and i really love it. Mostly use it for Plex as an media center, but here is the problem.After 1 hour inactivity it's set to go to sleep. and when i wake it up it work fine for about 10 seconds then it goes back to sleep, and i have to wake it up again for it to work.
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Aug 10, 2009
I am running Mac Mini as a home server (turns out to be not a great idea, btw), and even though I set the preference to never sleep or shut down, it does go to sleep when there is no activity for long time. Since I am using it as home server, it should stay awake all the time or at least wake up from sleep when there is incoming ping from other computer, but it just goes to sleep.
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Mar 28, 2012
I would like to my macbook pro to be turned off at 5% Battery power, as it doesn't turn of correctly at 0%. I'm having this issue for some years now, and want to get rid of it. Which plist needs to be changed for this? Or is there a Terminal-Command that's providing this? I don't want to buy a new battery yet, cause the one I have is quite fine still. I already reset the SMC and the Parameters. Is the battery status relevant, when resetting the SMC? Here's what has been going on so far: [URL]
Info:
MacBook Pro, Mac OS X (10.6.8), 2,5GHz 8GB Ram
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Jul 10, 2010
My MAC powerbook was working fine yesterday! I shut it down last night and when I tried to boot it up this morning I get: the booting "sound" and the grey screen after which the screen turns to black and in the top left-hand corner
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May 4, 2012
Macbook is charged up. Sounds like it's turning on but no tone. Screen stays black.
Info:
MacBook, Mac OS X (10.7.3)
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Jun 19, 2012
imac turns on but screen stays black ? i can hear it operating ...
Info:
imac 20" and macbook 13", Mac OS X (10.5.1)
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Aug 31, 2014
I can hear the chime going off, but the display turns on you cannot see through naked eye, you have flash light onto to the screen to see very little, can you tell me why this is happening and how to fix this issue. Secondly, can you tell me how to fix this issue, my keyboard and trackpad doesn't work. Is it the problem of flex cable of both the keyboard and trackpad or is the related to software
Info:
MacBook Pro, OS X Mavericks (10.9.4)
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Sep 1, 2014
My macbook pro late 2009Â (10.6.7) when i press the power button it turns on, then it turns off by itself and then on again and gets a black screen and nothing more no booting sound and i just hear the fans or the Hard Drive going...
Info:
MacBook Pro, Mac OS X (10.6.7)
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Jun 5, 2014
my computer turns on but there is only a black screen. i hear the sounds and am able to press buttons but nothing is seen. how to I fix this?
Info:
MacBook Air, OS X Mountain Lion (10.8)
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Jun 29, 2014
My screen is black but my laptop is not off.. and its not that only the screen is black, my mac on sleep (i think)...When I turn my mac on, it does turn on.. The starting screen comes out.. but the moment the desktop opens, the screen goes black. And if I try to wake my mac up by pressing any key, the mouse shows for like three seconds(on the black screen, not my desktop). So that means that my mac is not totally off, it's just that the screen is black. But once in a while, when I press any button, my desktop shows for five seconds and the screen turns black again. I had yesterday was that the finder was keep restarting. I was still able to go on all the apps except that I could not open any files on my desktop.
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Oct 28, 2009
my MBP is really screwing up these days. Basically the best way I can describe it is that randomly once in awhile (no matter what I'm doing, usually surfing the net) the screen flickers a few times, then most of it turns black (except usually for a small part on top that stays on whatever it was displaying before). The section between the part that stayed the same and the bottom is sort of "multicolored".
The computer does not respond to anything except holding the power button down for 5 seconds until it shuts off. If I try to adjust brightness or sound level, nothing happens. Anyway, I took it in to apple and they claimed it was the motherboard, so they replaced it. But today I had the problem again! What else could it even be? Any chance its the RAM/screen/hard drive?
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Mar 10, 2012
I went to the Genius bar and they told me to Control, Option, P, R on a reboot to restore the settings, but with a wireless KeyBoard it does not work. I installed my standard PC keyboard, but am not sure what keys renase the display back to factory settings.
Info:
Mac mini
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Oct 31, 2010
Anyone else noticing their new macbook air freezing randomly and the screen just turns completely black? The back light is still on but nothing is on the screen.
None of the buttons work, can't force quit anything, i have to hold power button to turn it off then back on.
It has happened to me twice already, first time when i was installing the adobe suite, second time is when I was working on a school assignment with a simulation app (not cpu or memory intensive AT ALL).
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Sep 5, 2014
Aperture 3.5.1 on iMac11,3 (Core i7, 2.93GHz, 16GB RAM) and OS X 10.9.4 (13E28)Â
Son's Eagle Project. Set up GroPro to snap a pic every 10 seconds. Now have 3,000+ photos in Aperture, in slideshow with most running at 1/10th second. Added text annotations.Â
In Aperture - plays perfectly.Â
Once exported - 75% through the video, screen goes black EXCEPT that the annotations I've made are retained - so occasionally a timestamp or comment appears on an otherwise black screen.Â
I've tried multiple export formats, no difference. Am now resorting to inserting timestamp slides between pictures to see if somehow there is a corrupted image that is causing the video export to fail.Â
Have replicated problem after a reboot with nothing of substance other Aperture running.Â
Info:
iMac, OS X Mavericks (10.9.4)
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Jun 22, 2006
A bizarre thing: when I wake my Cube from sleep, the mouse pointer seems to have converted itself into a black 1" square. As soon as I click in a program it changes back to an arrow.
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