MacBook :: Computer Randomly Shutting Down / Screen Goes Blank Instantaneously

Nov 1, 2009

I have a ibook G4 that's been randomly shutting down. It started doing this maybe about a month ago but it's started getting really bad lately. At first it would shut down if I unplugged the adapter. Not every time I unplugged it, but probably about 50% of the time. When I press the battery button all of the green lights would light up. About half of the time it will start up again if I just hit the power button but the half of the time I have to reset the pRAM. Lately this same thing has been happening except when the computer is still plugged in. And when in say shutting down I mean essentially instantaneously. One second it's on and then the screen goes black and it makes that turning off noise. Not a chime, but like all the fans and hardware are coming to a stop.

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OS X V10.7 Lion :: Screen Randomly Shutting Off?

Jun 17, 2012

So frustrated with this situation. It appears this is only happening since upgrading to Lion so that's why I've chose to post it in this forum. My screen has been shutting off randomly. And I've only been able to get it to happen when I use gestures on the trackpad. (I.E.: "App Expose, "Show desktop" or "Show all windows.) I say my screen because the HD is still spinning, the keyboard backlights are still on and the status light is still lit. I can't do anything but hard shutdown. I've tried adjusting the brightness, clicking, keyboard commands (force quit) and nothing does anything. I've been sending the crash report to Apple but I feel like that is pointless so I'm turning to the forum for a possible answer. I've inluded my specs below as well as a copy of the log that got sent to apple (in blue). I don't know if it will say anything to anyone but it's worth a shot. I don't think it's a screen cable issue cause I'm not moving or adjusting the screen when this is happening.

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Sep 7, 2010

In the past month, my Macbook pro, which I have had since May 2009, has started to act very strange.

Sometimes when I watch videos online (collegehumor, youtube, etc.), or am just working on my laptop, the screen stops working. It goes mostly black, and a bunch of weird lines appear on the screen.

The system hasn't crashed or froze, since I can still see my mouse because one little line follows its movement, and the audio still works, and I can still Command + Q and exit out of programs.

I think the problem may have been that I slipped on the stairs one day holding my Macbook Pro and may have damaged the screen somehow, but I just want to know if this has happened to somebody else with their MBP, and what caused it?

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Mar 23, 2010

I have a MacBook which has recently been shutting down when it feels like :/ this all started a week or two ago (well not the shut downs but other issues that I'll get too), basically the fan I think has been knocked as it is bumping the top or something as the whirring is getting loud and it sounds like every now and again it hits something

Also CPU usage seems to be averaging out at 20% for Safari and 100% for HD Video where as it used to be very small amount for Safari and 30 - 40% for HD.

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Jul 25, 2009

Yesterday I was working with my MBP in one of my client's office and the computer went blank. The screen turn to black and it was still ON. I had to press the ON/OFF button to shut the computer.

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Jun 17, 2012

I turn on my computer and it has a blank/gray screen.  I can turn it on and off, but that's all.

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Dec 1, 2014

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MacBook :: Pro Shutting Down Randomly

Mar 13, 2012

Late 2011 Macbook pro shutting down randomly, sometimes changing date.

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MacBook Pro :: It Keeps Shutting Off Randomly?

Jun 12, 2012

It keeps shutting off randomly, its a little over a year old, it's pluged in, fully changed, and and time resets to 2000 and the wifi information get lost.

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MacBook Pro (13-inch Mid 2010), Mac OS X (10.6.8)

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MacBook Pro :: Why Does It Randomly Keep Shutting Off

Dec 7, 2014

I've had it for about 6 years now and always have to have it plugged in because the battery is swollen and won't fit for the lid to stay shut. Now recently it's been randomly shutting off and have to turn it on again. Is it dying or it simply not getting enough sleep?

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MacBook Pro :: Shutting Down Randomly - How To Solve It

Feb 7, 2010

So, for the last week or so I'm been experiencing very strange symptoms, which I think are probably all connected:

1) My MBP (running 10.5.8 bought in August 2008) has from time to time just been turning itself off. Like, I'm just working on something and then it suddenly turns off.
2) My mouse from time to time stops responding to input, sometimes the keyboard does the same thing
3) When I restart after 1 or 2 occurs, it doesn't work. The computer turns on, I get to the screen with the apple on it (there's a chime all of that), then it goes to a plain blue screen and just stays there - the log in box never comes up.
4) In what I think may be related, my computer seems to be running extremely "hot" right now. After just normal use, I'm reaching GPU temperatures as high as 75 degrees according to iStat and CPU temps around 70.

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MacBook Pro :: Randomly Shutting Down For No Reason

Jul 3, 2012

Macbook pro (older style non-unibody) running 10.6.8 has started randomly shutting down instantly for no reason. Sometimes only lasting 30 secs before just shutting off, sometimes up to 10 minutes. Happens when cool or hot, no apparent rhyme or reason.Tried resetting SMC, no difference. Ran software update, thought that had fixed it as it stopped happening for a day, then the problem started up again.

Info:
MacBook Pro, Mac OS X (10.6.3)

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MacBook :: Randomly Shutting Down - System Is Overheating

Feb 11, 2010

My Macbook is 1.5 years old (13in, white, 2 GHz). About two weeks ago, it would randomly shut off. It would restart fine, but shut off sooner. Sometimes, it wouldn't even restart. Now, it's at the point where when I power it on, it rarely restarts past the white apple start-up screen.

My thought is that it is overheating. Are there any more ideas? What can I do to save my macbook?

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OS X V10.6 Snow Leopard :: Macbook Pro Is Shutting Down Randomly?

Feb 16, 2012

When my Macbook pro is not plugged in, and i try to watch videos, it shuts down like it dies, even if it says the battery is 90%. Is it a battery issue? Or some other type of issue? Bought it in late 2008..

Info:
MacBook Pro (15-inch Late 2008), Mac OS X (10.5.8)

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Apr 4, 2012

I had been using it for about an hour without any problems when this started happening.  Ever since, I've been consistently having these issues.  It is a mid 2010 model. It also sometimes flashes weird glitchy images instead of booting up or starts flashing them while I am using it, and then shuts down.  Here's a quick video of what I'm talking about (it was showing even crazier images before I started recording it)[URL]

Info:
MacBook Pro (15-inch Mid 2010), Mac OS X (10.7.3)

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MacBook Air :: Shutting Down Randomly While Listening To YouTube

May 7, 2012

First of all, let me give you a rundown on everything I have done:I have reset SMC. I have reset PRAM. I have disabled Java in all browsers, and I have deleted Java. I have erased disk completely, taken it to the Apple store and have OS reinstalled. I have repaired the disk. I have repaired disk permissions, and I discovered Java had a value of 80, should be 0. (This caused me to disable most Java programs.) I have verified the disk and disk permissions.

After the restore, I have only reinstalled a few programs: (Upon reaching this problem again, I deleted some programs):
Opera Browser - Deleted, did not allow me to disable Java.
Caffeine - Deleted, not well known.
StarCraft II - By Blizzard Entertainment, too uptight to create this kind of problem.
Komodo Edit - Deleted
Skype
LogMeInHamachi - Deleted

Files:
A folder with some HTML and CSS and a few pictures - Deleted
A screenshot of my computer on my desktop.

I have no music in iTunes. Nothing.For example, right now, I am listening to YouTube and typing this. A message pops up with message:Are you sure you want to shut down:Sleep Restart Cancel Shutdown (Shutdown is blue).

Info:
MacBook Air, Mac OS X (10.7.3)

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OS X :: Randomly Popping Up Gray Screen - Restart Computer

Aug 3, 2010

My computer has started randomly popping up a grey screen which tells me to restart. It keeps happening and obviously something is wrong. Not sure if it is a hardware failure but something's broke! Anyone know what the deal is? Here is my latest panic log:

Latest stack backtrace for cpu 0:
Backtrace:
0x000954F8 0x00095A10 0x00026898 0x000A8204 0x000ABB80
Proceeding back via exception chain:
Exception state (sv=0x2D9C6780)
PC=0x00306440; MSR=0x00009030; DAR=0x9C95F6DC; DSISR=0x40000000; LR=0x003063BC; R1=0x1787B9C0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x003063BC 0x002B7FCC 0x004EE0A8 0x004EDB9C 0x004EDA20 0x00465CCC
0x0049A634 0x0049A338 0x0049B6E0 0x0049BA14 0x002D1B8C 0x002D0A54 0x000A9714
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.AppleUSBTCKeyboard(1.3.0f1)@0x4ec000
dependency: com.apple.iokit.IOUSBFamily(2.8.1)@0x463000
dependency: com.apple.iokit.IOUSBHIDDriver(2.5.5)@0x4e6000
dependency: com.apple.iokit.IOHIDFamily(1.4.13)@0x4a5000

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OS X V10.6 Snow Leopard :: Hit A Key To Start Up The Computer, Getting Blank Screen

Feb 7, 2012

In the last few days, when I hit a key to start up the computer, all I will get is a blank screen with the small, multi-colored, rotating disk icon.  I can't get out of this unless I hold the power key down for about 5 seconds, which I know is probably not the right way to shut down.

Info:
Mac Pro, Mac OS X (10.7.2)

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Dec 4, 2014

I have a MacBook Pro. Keeps completely shutting down all the time when its fully charged and at random times when it is at 65% for example. Do I need to get a battery replacement? Or do I have a virus?

Info:
MacBook Pro

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Mar 4, 2012

My iMAC is stuck on blank grey screen at startup. Keyboard is not active, won't function at all.

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OS X :: Safari Shutting Down Randomly

Oct 9, 2009

I've been having troubles with safari shutting down randomly. I went to [URL] to try and reinstall safari. But it won't let me do this because it says this update requires mac os x 10.5.8. or newer. The thing is I have 10.6.1. What should I do now?

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PowerPC :: IMac G5 Shutting Down Randomly

Sep 2, 2007

a close friend has a 20' iMac g5. the Computer now shuts downs sporadically and she says it gets a lot hotter any idea what's wrong?

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Mac Pro :: Shutting Down / Sleeping Automatically And Randomly

Aug 3, 2009

I have a MAc Pro, Bought in January 09, pretty much stock except for an exta 500 gb drive and the Nvidia video card.

I have a strange problem, I will be using the computer and it will just shut down. Ie my LCD monitor shows the "RBG MODE" screen which it shows during a reboot or if turned on when computers off. My Intelli mouse explorer laser mouse turns off but if I click the laser turns on and off with each click and the power light on the tower is lit but nothing turns the machine off/on unless I hold it down till it reboots.

This has been happening since about the beginning of July, happened last week again every 10 minutes or so it would do this. Saw a post that said it's cause its too hot and its shutting down for safety, I have Istat and the temps at that time was 35 degrees celcius ambient and the processors when watching a dvd or somthing was around 40 degrees, I installed smc fan control and ramped up my fans and with them runing 1500 rpms the temperatures have been steady at around 32 ambient and 35-37 for the vaious sensors. Today the heat wave is over and istat says the ambient is 26, processors and drives are still 35-37 and it rebooted again.... is my machine running hot or is it somthing else.. I am at a loss. It is a Stat holiday here so I cant call my local repair place. Running OSX 10.5.7 any other info is available if needed.

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OS X V10.7 Lion :: IMac Randomly Shutting Off

Apr 23, 2012

My IMAC with Lion desktop is randomly shutting off.

Info:
iMac, Mac OS X (10.7.3), Lion

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Nov 28, 2010

I'm using iGetter version 2.8 and it's great. Downloads are quick, but I have one concern about the program. It randomly shuts down every 5-10 mins or so. The downloads aren't finished downloading and iGetter shuts down.

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PowerPC :: IMac G5 Randomly Shutting Down - How To Prevent

Sep 21, 2007

My friends iMac G5 just recently has been randomly shutting down. Does anyone know anything I can do to him fix his computer?

I checked [URL] and there seems to be issues with power on some models, but his serial number just misses the infected batch.

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PowerPC :: IMac G5 Started Randomly Shutting Down When Not Used

Feb 5, 2008

I looked into my issue a little but recently my IMac G5 started randomly shutting down when left unused for a bit but that seems to have stopped as far as I have noted. Now occasionally when it goes into sleep mode it will freeze on the black screen and the fan will go crazy. I plan on buying a MBP, if the update ever comes out, and then ill just completely wipe the IMac and give it to my parents, who still use the original I mac, G3 or something. I read a certain series of I Macs were having motherboard problems, W950 or something, but mine wasn't that serial code.

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IMac (Intel) :: Randomly Shutting Down For No Reason?

Aug 30, 2014

I have had this for the last few days, so I don't really know what's going on... 

Anonymous UUID:       D4B5793A-92CF-4E5D-33F8-94D77B084C5C  
Sun Aug 31 00:07:39 2014
panic(cpu 2 caller 0xffffff8002c5220d): "zalloc: zone map exhausted while allocating from zone kalloc.8192, likely due to memory leak in zone kalloc.64 (1440851328 total bytes, 22513266 elements allocated)"@/SourceCache/xnu/xnu-2422.100.13/osfmk/kern/zalloc.c:2494
Backtrace (CPU 2), Frame : Return Address
0xffffff81348c3c70 : 0xffffff8002c22fa9

[Code].....

Info:
iMac, OS X Mavericks (10.9.3)

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Laptops :: MBP Randomly Shutting Down - Smart Drive Failure

Feb 12, 2010

My 15" MacBook Pro has been randomly shutting down. I ran Apple Hardware Tools, but it found nothing. So, I ran TechTool Pro 5.0.6 and discovered a SMART drive failure. On the 'Temperature Changes' test, the black indicator is all the way to the right. What does this mean? What do I need to do?

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