Intel Mac :: 2011 Screen Unexpectedly Goes Black (to Sleep), Won't Wake

Feb 19, 2012

I'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.

iMac (27-inch Mid 2011), Mac OS X (10.7.3)

View 2 Replies


OS X :: Black Screen When Wake From Sleep

Mar 10, 2010

When 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 Related

IMac :: Black Screen Display When Wake Up From Sleep

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.

View 3 Replies View Related

OS X V10.7 Lion :: Black Screen Upon Wake Up After Longer Sleep?

Mar 9, 2012

In 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. 

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.

MacMini 2011 i5, 8GB, Radeon 6630M , Mac OS X (10.7), iPhone4; headless dual G5 via FW800

View 2 Replies View Related

MacBook Air :: Display Only Black Screen And Pointer When Wake Up From Sleep?

Aug 23, 2014

my 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?

MacBook Air, OS X Mavericks (10.9.4)

View 4 Replies View Related

MacBook Pro :: Black Screen With Cursor For 5-10 Seconds When Trying To Wake Immediately After Display Sleep

Jun 23, 2014

I've noticed that when my rMBP (late 2013, Mavericks) turns off the display automatically while on battery (as configured via Energy Saver) and I try to wake it immediately, I get a black screen with the cursor, rather than my password/unlock screen.  It remains a black screen, with the cursor moveable, for 5-10 seconds or so, and then the password/unlock screen will appear as usual. 

This does not happen if:I don't try to wake the display/computer immediately after automatic display sleep (e.g., I wait 5-10 seconds and it's fine)I turn off the display using a hot corner and immediately wake the displayI put the computer to sleep by closing the lid and immediately wake it by opening the lidI select Sleep from the System/Apple menu and immediately wake it by pressing a key or clicking on the trackpad 

Why automatic display sleep is causing this temporary black screen?  I currently get around it by setting the time for automatic display sleep while on battery to 10 minutes instead of the default 3 minutes to minimize the chances of needing to immediately wake the screen.  I'd like to keep it at 3 minutes if possible to maximize energy savings, but the temporary black screen is really annoying if I didn't really want display sleep and consequently have to wake immediately.

View 2 Replies View Related

IMac (Intel) :: Why Does Computer Turn Black When Wake It Up From Sleep Mode

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.

View 3 Replies View Related

OS X Yosemite :: IMac Wake Unexpectedly From Sleep Mode Then Goes Back To Sleep

Nov 30, 2014

My iMac wake unexpectedly from sleep mode then goes back to sleep 00:10-00:15 later.  Yosemite is current.

iMac, Mac OS X (10.6.8)

View 1 Replies View Related

IMac (Intel) :: Black Screen On Wake - OS X 10.9.3

Jun 1, 2014

This 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. 

It stays black for a while (15 seconds or longer, but it feels like forever) and then it finally comes up completely. 

iMac (27-inch Mid 2011), OS X Mavericks (10.9.3)

View 1 Replies View Related

Intel Mac :: Screen Corrupted After Wake From Sleep?

Jun 22, 2012

My screen on my 2 week old iMac comes up pixelated leaving square trails mimicking the movement of the mouse. I have had consultations twice with Apple support junior team members, looking forward to a senior team member reviewing my case. It looks like some sort of eraser wiping the blank dark screen revealing the login screen underneath.

Oh by the way my first iMac was sent back due to dead pixels, how unusual is that?

iMac (21.5-inch Mid 2011), Mac OS X (10.7.4), 2 weeks old

View 4 Replies View Related

MacBook Air :: 2011 Won't Wake Up After Sleep?

Feb 12, 2012

My Macbook Air 13" 2011 won't wake up after sleep.  I've taken it to apple genies bar, but they offered to replace my logical board!

I bought the Macbook Air in last August.  Why cannot they replace a new laptop???

MacBook Air, Mac OS X (10.7.3)

View 3 Replies View Related

OS X :: Getting Application Quit Unexpectedly Msg When Wake Up From Sleep After Update Snow Leopard 10.6.1

Sep 12, 2009

Since upgrading to 10.6.1 I've found that every time i wake my MB from sleep, applications keep quitting left and right, and I get these "application quit unexpectedly" messages. It's happened with Entourage, Safari, iTunes, Dashboard. It's getting pretty annoying. I've tried resetting the PRAM but that didn't help.
Does anybody have a clue what to do?!

View 5 Replies View Related

Mac Mini :: Does Not Wake From Sleep - Stays Black

Jul 2, 2012

I 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?

Mac mini, Mac OS X (10.7.4)

View 4 Replies View Related

OS X V10.7 Lion :: Display Remaining Black After Wake Up From Sleep

Jun 14, 2012

I 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.

View 2 Replies View Related

Late 2011 MBP 15 Will Not Sleep When Plugged In / Display Goes Black When Opening Lid

Apr 11, 2012

This is an odd, intermittent problem that started about a month or two after purchasing my fall 2011 MBP 15 (i7 2.5, 16GB RAM). This problem started, went away on its own, and now it's back after about two months of being trouble free.When I close my computer, it doesn't go to sleep.The slit light on the right front of the computer does not go into its slow flash mode; however, it does light up solid, and theng it stays lit.When I open the lid, the computer wakes up immediately (it was never "sleeping" to begin with), but then after a second or two the screen fades to black.The screen can be brought back to life by pressing either of the brightness buttons on the keyboard.I took it to the Genius Bar, and of course I couldn't replicate the problem for them.When I got back home, I decided to test the computer plugged in, and that's when the problem came back.I don't know why it went away previously.So, in summary: The issue only occurs when the computer is plugged in.The sleep problem existed before I installed 3rd party RAM and Parallels 7, and they exist now after I have installed the RAM and new software.I use a wireless mouse, and the little dongle has no effect on the sleep issue - the computer will not sleep (when plugged in) either with or without the dongle in a USB port.The battery charges just fine.All of my software is up-to-date, and I'm running OS X 10.7.3I have checked for the Flashfake malware, and I do not have it.I am running Sophos Anti-virus; I have done a scan, and have found no threats.They flashed my PRAM and ran some tests at the Apple Store and everything passed.

MacBook Pro, Mac OS X (10.7.3)

View 6 Replies View Related

Mac Pro :: Mac Pro Black Screen On Wake-up

Nov 25, 2010

Just got a new Mac pro and installed an SSD as the boot drive. I was downloading some apple software updates and left the machine alone to download for an hour.Came back and it was asleep or hibernating (is there a difference?)At that point I clicked the mouse and I could hear it start back up but NOTHING came on the screen, just black.I could press a key on the keyboard and hear the error type noise so the desktop was active, just not being displayed.

I disconnected my mini display port (I have a 24' Apple cinema LED display) and plugged it into the second mini display port on the back and it came back on.Anyone know what this could be?A result of an SSD boot drive or do I need my LED display plugging into a particular mini display port out of the 2 on the graphics card?

View 5 Replies View Related

Mac Pro :: Black Screen And Can't Wake Up Then

May 30, 2012

I have a MacPro 1,1 (2006) 2.66GHz that it is always working as a home server.  

After some time working idle the screen goes black. When I want to wake up there is no response. The screen turns into safe energy mode blinking his LED light power indication. I have to force shutting down pushing phisically the power button for some seconds.  

Graphic Card problem? I have another one but I don't test it for now.   

I have made a PRAM reset and SMC reset shutting down the MacPro, unplug the power and push the power button for 10 seconds. No results at all. 

Even putting Energy System Preference on NEVER (computer sleep and screen) after some time (2-3hours) the MacPro goes to black screen. 

Mac Pro, Mac OS X (10.7.4), 8GB RAM; ATIRadeonX1900

View 3 Replies View Related

Can't Wake MacBook Pro / Screen Remains Black

Jun 26, 2012

I slept my MacBook Pro last night and can't wake it? I have rebooted and no bing sound is made. The screen remains black. The volumn keys blip. It is as if it is still locked in sleep mode!

MacBook Pro, Mac OS X (10.5.4)

View 5 Replies View Related

Mac Pro :: Pixelated Screen When Wake Up From Sleep Or Booting Up?

Sep 17, 2008

I'm on Mac Pro os x 10.5.4 and having a problem with my computer waking up from sleep or as it is booting up.

As it wakes up from sleep, the screen becomes blank or shows weird, pixelated bars all over the screen. When I try to move the mouse or press something on keypad, the computer freezes after and I would have to force shutting it down by pressing the power. It doesn't always happen, but quite often these days.

Also, when it's booting up, it sometimes will freeze with a blank screen in the middle and won't show the desktop.

Everything worked fine until a few days ago, and i'm wondering what's suddenly causing this problem.

View 4 Replies View Related

IMac :: Screen Color Wake From Sleep

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.

View 4 Replies View Related

OS X V10.7 Lion :: MBA Screen Doesn't Respond Well On Wake After It Goes To Sleep

Mar 3, 2012

Is it that there is just too much going on for the system, I have my HD encrypted. 

MacBook Air (11-inch Late 2010), Mac OS X (10.7.3), HD encrypted

View 1 Replies View Related

Intel Mac :: When Computer Goes To Sleep It Will Not Wake Up

Feb 1, 2012

When 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?

Imac G5, Mac OS X (10.7)

View 8 Replies View Related

Intel Mac :: Can't Wake Up After Sleep Mode

Feb 24, 2012

Mac owner for 2 months now and have had no problems till today...had to reboot to wake up from sleep time occurrence or start of an issue?

iMac (21.5-inch Mid 2011)

View 3 Replies View Related

Intel Mac :: Computer Does Not Wake From Sleep?

Mar 29, 2012

Computer does not wake from sleep mode

iMac, Mac OS X (10.6.8)

View 2 Replies View Related

Intel Mac :: Won't Start Up, Or Wake From Sleep

Apr 26, 2012

My iMac won't start up, or wake from sleep.  I've tried everything, except for reinstalling the SO-DIMM memory modules. Still, my iMac will not wake up.  Turning it on, you can hear the fan run, but the display stays dark. 

iMac, Mac OS X (10.6.8)

View 3 Replies View Related

Intel Mac :: Would Not Wake Up From Sleep Mode

May 5, 2012

My 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.


View 1 Replies View Related

Intel Mac :: Won't Wake From Sleep Mode

May 28, 2012

Computer 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.

iMac, Windows 7

View 1 Replies View Related

MacBook :: Screen Intermittently Turning Itself Off And On / Sleep And Wake Occurring

Aug 8, 2010

I bought a new unibody Macbook around 4-5 months ago and I've generally been very impressed with it. It's my first Mac and considering all the problems I'd had before with Windows PC's, it's quite a relief.Anyway, here's the issue. When hooked up to my 24 inch Dell monitor there are numerous problems. Originally it just started with the screen intermittently turning itself off and on, and there being a sleep/wake issue. I did some research then and discovered that this was by no means a problem confined to me. Knowing this I was prepared to wait until Apple fixed it with a firmware update or something, as the problem was annoying but not devastating.

However since then the problem has got significantly worse. Not only are the screen flickering, sleep wake/issues occuring much more frequently, but there are other problems. For instance, the menu bar and the dock sometimes fail to show, and I've been having a very weird problem with the Logitech mouse I use. Even though I can move the cursor generally I can't click, and when I can, only the right mouse button works.The same is true with the trackpad, so it's not a problem with the mouse.

When these problems occur the system generally seems to be very slow. I've checked the 'activity monitor' and the use of 'system memory' seems to be very high. For instance, at the moment (I'm using my Macbook by itself) I'm running a few applications (Mail, iCal etc.) and I've got 1.09 gb of free memory. Last night I was running exactly the same applications and I must have had less than 0.4 gb of free memory. The pageout numbers were fairly high as well.

It's strange because when disconnected from the external monitor the Macbook seems to work seamlessly. I just don't understand how some of the problems I've experienced (such as the mouse issue) can arise from problems relating to the external monitor setup. What do you think? Should I be worried that these issues are perhaps indicative of a greater problem? Either way, the problems are becoming hard to deal with. Very disappointing.

View 7 Replies View Related

Intel Mac :: Can't Wake Up From Sleep After Lion Upgrade

Mar 31, 2012

cant wake up imac from sleep after lion upgrade

Info:iMac, Mac OS X (10.7.3)

View 2 Replies View Related

OS X V10.7 Lion :: Imac Intel 27 In Does Not Wake From Sleep?

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.

iMac, Mac OS X (10.7.3)

View 1 Replies View Related

Copyrights 2005-15, All rights reserved