Intel Mac :: Odd Blank Screen / Lockup - Requiring Hard Shutdown
Jun 10, 2012
I have a mid 2007 iMac that seems to, for no apparent reason at all, just randomly go to a blank screen, locking up my Mac requiring a hard shutdown. This happens sometimes right after I start it up or after I'm on for hours at a time. Or not at all, I simply don't get it. I reinstalled Lion (after I redownloaded it to be safe) and it didn't seem to work.
Info:
iMac, Mac OS X (10.7.4), Mid 2007,500GB Hard Drive, 3GB Ram
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Jun 20, 2014
New iMac at first of year has always locked up with green squares (1/4") randomly on the open window. I have to do a hard boot to unlock the screen. This may happen 5 or 6 times a day but I'm finding no pattern. It happens in any software, mail, internet browser, extra programs and only using what I need at the moment, including mail and internet, hasn't worked. I've run disk utility - repair disk and repair permissions multiple times to no avail. I've reinstalled the OS Mavericks and Adobe Creative Suite programs (Photoshop & Premiere Pro), no improvement. Â
I purchased a high-end iMac specifically to handle high-demand video editing needs. But this happens when checking email or browsing the internet too. Here's a listing of the system from a "Panic (system crashes) log" from the "Activity Report."Â
System Profile:
Model: iMac14,2, BootROM IM142.0118.B00, 4 processors, Intel Core i7, 3.5 GHz, 32 GB, SMC 2.15f2
Graphics: NVIDIA GeForce GTX 780M, NVIDIA GeForce GTX 780M, PCIe, 4096 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz,
[Code] .....
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Mar 26, 2009
Usually when playing an online game called "Marble Blast Online" (via [URL])my mac will lockup and go to a solid black screen. The computer will not respond to any keys pressed, front row remote, mouse, basically anything. The only way to get out is to hold down the power button on the back of the mac to force shut down the computer. I've spoken to the game developers, and they say that it is probably defective hardware because all the other mac users seem to be able to play the game fine. If this is so, which hardware do you think it would be? Something serious such as the motherboard, or simply a video card? How could I go about getting this fixed or replaced- take it to the genius bar?
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Jul 3, 2012
New to Mac computers. When trying to open computer after being in sleep mode, I clicked the mouse to open the password screen, & a blank blue/black screen appeared & the mouse timer( colored circle) appeared, as if to be waiting. I had to unplug the computer to reboot it. This has happened twice in 2 days.
Info:
iMac (27-inch Mid 2011)
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May 25, 2012
I have a 2011 iMac which i've loved using. I bought a Seagate goflex external harddrive so I could start using time machine. I've noticed that whenver I power my iMac down it will sit on the grey screen just before shutting off for a long time. In fact, it will not actually shut down until i unplug my external hard drive. As soon as I unplug my harddrive the mac starts thinking again and shuts down within seconds. Why it would do this. I now hard plug my harddrive in because of this, which is kinda of dumb since I bought it to work as a time machine.
Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.4)
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May 29, 2012
I have just got an old 2004 G5 and thrown a brand new hard drive in it. When i tried to install leopard (which I'm told would be the best operating system to use) it comes up with a blank blue screen!
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Jun 23, 2012
When I turn my computer on nothing happens. You can hear the drive or cooling fans but there is nothing on the screen. Normally there is the spinning wheel but now nothing.
Info:
iMac, snow leopard
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Mar 4, 2012
Imac won't shut down, blue screen with spinning wheel is on and computer never shuts until I hold the power button down and shut it manually..
Info:
iMac, Mac OS X (10.6.8)
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Apr 20, 2012
A small (about 1 inch square) blank, white box has appeared at top left-hand corner of my screen. Nothing seems to shift or remove it - cursor doesn't seem to recognise or register on it. I first noticed it soon after I'd had to re-start the Mac (it failed to 'fire up' as usual the other morning), but I can't remember exactly what I was doing when I first saw it.
Info:
iMac, Mac OS X (10.7.3)
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Jun 5, 2012
Recently my iMac display goes black in the middle of using it. Initially I thought it froze up and I had to force it to reboot. But after this happned a couple of times I realized that I could stil hear the hard drive working and my peripheral lights (keyboard, etc) were still on. On a hunch I put it to sleep (Option-Cmd-Eject). After it goes silent I can press a key and the display comes back up and everything is normal (for a while).Â
It's now been doing this regularly for the last 3 weeks. Sometimes three or four times a day this occurs. When the screen goes black nothing seems to work except the sleep-wake thing. I've tried the screen brightness keys too - but that doesn't work either.Â
My software is up to date (Lion 10.7.4). This is a Mid 2010 iMac 27" with 12GB of RAM and the ATI Radeon HD5750.The regular software that I have running is:
Chrome
Forklift
Light-room 4
Info:
iMac, Mac OS X (10.7.4)
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Jun 17, 2012
Our iMac is starting up.....I can hear it loading. However the monitor screen is completely blank/dead with no backlight.
This has just happened. I have switched it off and unplugged from the mains before trying again but no luck!Â
Info:
iMac (21.5-inch Mid 2011)
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Mar 13, 2012
My early Intel iMac (2006) won't shut down - gray spinning wheel and blue screen for more than 2 hours now. Can I safely turn it off with the power button? (I'm a little paranoid after a bad experience doing that with my MacBook Pro).what I should I do then?
Info:
iMac, Mac OS X (10.4.7)
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Jun 3, 2012
My iMac is the latest model, however when I try to shut it down I get a grey screen with the apple loading spiral and it doesn't shutdown. I have version 10.7.4 OSX Lion, all updates have been downloaded. I have resorted to leaving it on. I do not want to hard shutdown because this could damage the system, my old iMac broke after the hard drive was damaged with the same style of issue.
Info:
iMac, Mac OS X (10.7.4)
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Feb 8, 2012
I restarted my mac this morning after the time was broken (as far as I know, I cannot manually change it). When it booted, it booted normally. It logged me in (I am automatically logged in) then it threw errors at me. The 2 errors were from Steam and Skype, but none from the mac itself. Steam error: " Steam failed to load: *SteamStartEngine(0xbfffdea4) failed with error 1: Failed create pipe: 28". I forgot to record the skype error, but it was something to do with it not being able to find a file. At this point, the background is blue, I can see the top bar but not the dock. I then close Steam and Skype windows and the bar disappears leaving me with nothing. A blank blue screen. The dock wont come up.Â
I would take this to support, but they want a serial code that i cannot access because its not on the hardware and I cant access 'About this Mac" because it disappears.
Info:
iMac
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Mar 26, 2012
a blank white screen appears whens i start the imac up, it doesnt seem to respond to anything i press on the keypad or the mouse. it just simply stays on a white screen and wont let me log in or anything. when i turn the imac on it just pops up straight away without the loading sign and bluescreen that appears after the white.
Info:
iMac
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Nov 4, 2009
I did a pram reset but that did nothing (I heard the initial chime and the one after the reset....still the same problem.) I'm a bit worried because I don't hear the hard drive starting up.
Some more info... Intel Imac 17" (late 2006 model), 512 mb of RAM, running 10.4 (I think). I am not familiar troubleshooting macs but I am troubleshooting PCs.
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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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Jun 9, 2012
I just got my IMac. I have no clue what happened it was working fine. In the morning when I turned it on it just went blank turned on to a white screen with an apple on it and nothing else is happening.
Info:
iMac
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Sep 10, 2014
My screen had black and white vertical lines pop up over the entire screen then went blank and now at a restart the password then loading spinning circle happens then I get a blank white screen.It's a 27 in Intel iMac that is about 2011/12 purchase
Info:
iMac (27-inch Mid 2011), OS X Mountain Lion
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Jul 1, 2012
My daughter's old I Mac won't start. It is not backed up. We want to get some things off of it if we can. When we turn it on, we get the Apple logo with spinning wheel for awhile, then a question mark briefly and then a sky blue blank screen. Is there any hope of getting this to work? This computer is out of warranty. Does it seem that if we reinstall the Operating System we might find old data? Â
Info:
iMac, Mac OS X (10.4.4)
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Sep 28, 2009
My wife's iMac. Upgraded from Tiger to SL. She tries to reply to email. Spell Checker wants to check every personal name in the original message. She starts telling it to ignore. it will move through first few, then go into Beach Ball and all is hanged up. only way out is to hold down the power switch!
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Sep 4, 2010
When Snow Leopard came out I immediately updated my Unibody MacBook Pro 2008 to it, but at that time i had severe lockup problems, and after trying EVERY solution I could find on the net with no help, I decided to go back to Leopard.But now, I'd like to take the leap to Snow Leopard, if I can get there without all the lockup problems!If it matters my MacBook Pro is upgraded with a WD 500GB HDD and 4 GB kingston RAM.
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Jun 4, 2012
I have to hold the power button down for several seconds to force it to shut down.
Info:
MacBook Pro
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Sep 6, 2009
So basically, my hard drive is dying (clicking/chirping noises, random freezes), but for now it seems to keep working and until it finally breaks, I want to put as little load on it as possible and was wondering whether its better to put the machine to sleep at night or turn it off completely? I realise it's fairly minor by itself, so in addition I'm trying to stream as much video as possible instead of downloading, I've got it constantly hooked up to an external making hourly TM backups, also got a carbon copy bootable clone made.
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Apr 22, 2012
I recently bought a new Mac mini and Seagate goflex 3TB external hard drive. The computer is awesome but if I have the external hard drive plugged in, it messes with the restart/shutdown. The mac will act like it's powering down and go to the blank white screen but will never turn off and shows the little gray lines that go in that circular motion at the bottom of the screen. If I disconnect the USB from the Mac then it completes its power down. I've tried the suggestions of repairing disks or disk permissions, as well as resetting the PRAM, which have worked sometimes but the the problem reoccurs. I've also tried ejecting the external hard drive before shutting down on the Mac but I'll either get an error message or nothing happens and then the above shutdown issue occurs.Â
Why does this happen and what can I do so that I can always have the external plugged in and not have to manually unplug it so the Mac can shutdown?Â
Info:
Mac mini
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Mar 26, 2012
3/26/12 1:44:13 PMkernelAppleBCM5701Ethernet:   0  a BCM5701Enet::replaceOrCopyPacket timedout This is the last line I get in any logfile before the system totally locks up. This happens at least once a day, with no particular pattern. This started happening about 3 weeks ago, and the only solution is to power cycle the machine.
There are no other items in the log files to indicate anything is wrong. This is the only common log entry, and always the very last before the system is power cycled. I have no idea what is causing the system to hang like this. Mac Mini Snow Leopard Server
2.4ghz core 2 duo 4gb ram.
Info:
Mac mini, Mac OS X (10.6.8)
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Jul 26, 2008
I tried to install some apps requiring Apple's X11 like wireshark and the gimp compiling them with macports. The problem is that they're not starting. They simply don't start. I tried running them from the terminal but I get no error. I just formatted my partition so this is a fresh system, but before these same apps used to work correctly. The first time I try to run gimp I get a message saying I don't have Apple's X11, then I run it and the next time I start gimp it simply doesn't start.
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Jul 6, 2012
I recently purchased a new app (BoobookSNMP) on the Mac App Store and it downloaded fine. However, each time I start the Mac App Store and go to purchases, it is marked as requiring an update. But it's not listed among the Updates on the specific tab for Updates.Â
How can this be cleared up so that it appears as all the other apps do (installed)?Â
Info:
MacBook Pro (17-inch Core 2 Duo), Mac OS X (10.7.4)
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Jun 11, 2012
I just installed and updated some new software on our MacBook, and restarted it to enable all of the features. However, when I restarted it, the desktop picture showed up with the loading icon at the bottom. I believe this is what it does to prepare the MacBook for reboot after new software has been installed, but it has been stuck in this mode for about 25 minutes.Â
Is this normal for a MacBook to do for some software? And should I just wait it out or should I hold down the power button to force shutdown?Â
In case it is important, the software I installed is Sophos Anti-Virus for Mac Home Edition.
Info:
iMac and Macbook, Mac OS X (10.5.8), iPod Touch 2nd Gen 8GB, iPod Nano 3rd Gen 4GB, iPod Mini, iPad 1
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Jun 6, 2012
I plugged an external hard drive into my MacBook Pro and it immediately shut down. Now it will not start, it's completely dead.
Info:
MacBook Pro (13-inch Early 2011), iOS 5.1.1
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