Imac shows super weird lines on screen during start up and then freezes at blue screen (WITH PHOTO)
My Imac froze earlier today as I was dragging an image from safari into indesig and when it froze the weirdest pattern overlaid the screen. It looked just like the opacity pattern from photoshop with grey and white squares. I turned the computer off using the power button and unplugged everything.
Now when I try to start it these weird lines appear on my start up screen (see link)...
http://meijerladdaruppgrejer.wordpress.com/2012/07/24/oops/
as you can see the apple and the wheel appears as normal...
... then it moves to a normal looking white screen (perhaps a bit greener than usual) and around 30 seconds later freezes at the blue screen.
I've tried the cmd + alt + p + r several times but it won't help.
If i press alt during start up I can see and choose my hard drive but just end up at the blue screen again.
Can I try starting it up in safe mode or something?
Thanks! Any input is welcome.
Is this the same problem? Verical Lines" seems a bit diffuse. I've seached for a similar question and found a lot of other types of lines and stripes.
Could this be a solution?
http://support.apple.com/kb/TS3824?viewlocale=en_US&locale=en_US
If so, how do I install the update if I can't get passed the blue screen? Can I start my Imac in safe mode? How?
iMac (Mid 2011): Unresponsive white screen on startup or vertical lines on screen
Symptoms
In certain circumstances, your iMac (Mid 2011) may become unresponsive on startup, with a white or gray background on the display. You may also notice vertical lines on the display while using your iMac.
Resolution
Install the iMac Graphics Firmware Update 2.0 if your computer exhibits these issues. To install the update, chooseSoftware Update from the Apple () menu and follow the onscreen instructions.
Important: Do not interrupt the power to the computer while the update is installing. After the update is finished installing, you will need to restart your iMac.
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My macbook pro freezes and then displays a blue screen with black stripes... do you know what's wrong with it?
I have a two and half year mac book pro... I've had some issues with the screen looking scrambled when I quit certain applications, but now it's turned into something worse. I'll be working on my computer and the thing will freeze. When I force restart, the first screen, the apple logo, will be a blue tint and won't boot up normally. Then I try safe mood and it will then boot just fine. But there are blue stripes on my screen. The screen alternates from a blue tint to normal and if the computer freezes again the screen will become completely blue with black stripes. I haven't tried reinstalling my software because I don't have the startup discs that came with my computer. If I was sure that would fix it I would purchase them, but if it's a hardware issue I'm afraid that I'm screwed. I've been able to successfully get the blue off my screen by putting it to sleep and then waking it up, but that's not working well anymore either.
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For the past few days now whenever I go to turn on my iMac it takes roughly ten or more minutes to boot up. For the portion of this time it sits on a blank blue screen. At first it comes up to a plain white screen which after about 30 seconds has the apple logo on it and the spinning circle for about a minute then to the blue screen, every time. Then, to top it off right when this started happening another problem began occurring. The computer is set to go into sleep mode after 15 minutes of no use. But, if it is in sleep mode for too long I am unable to get it out and I have to restart the entire computer, but if it is just for a few seconds into sleep or a minute I am able to get the screen to come back. I can still here the fan running and such so I don't know what is going on. I have searched through discussion after discussion. I have tried: repairing disks, repairing permissions, starting up in safe mode, and such. There has been no luck so far. I was wondering if anyone could offer insight into fixing at least one of these problems since my schooling relies on the computer.
By the way I this is an iMac 10.6.4 refurbished which we just bought about two weeks ago.
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I cannot start up my iMac. A message popped up and asked me to restart again.
I don't know what model of iMac or what version of the OS you have
It would be helpful information for any one who wants to help you.
Is this what you are seeing?
If it is, what you are seeing is called a Kernel Panic.
Did you add Ram recently? Bad RAM can cause these.
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If it does, then restart normally and see if the problem is still present.
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If you have any original installation disks that came with your iMac, try starting from it by inserting the disk and holding C at startup until you see the Apple on screen.
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See here for some troubleshooting help.
http://docs.info.apple.com/article.html?path=Mac/10.7/en/mchlp2890.html
If nothing works:
If you are still in the first 90 days since buying your iMac, you can call Apple for some support over the phone.
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If you are out of the 90 days period, but still in the one year warranty period, take the iMac to an AASP for repair. -
Hi There is a ghost search bar on my iMac that flashes continually, even during start up and shut down. How can i make this go away? Please help. x
Please read this whole message before doing anything.
This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.
Step 1
The purpose of this step is to determine whether the problem is localized to your user account.
Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
While logged in as Guest, you won’t have access to any of your documents or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this behavior; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
Test while logged in as Guest. Same problem?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
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Step 2
The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Please take this step regardless of the results of Step 1.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
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Test while in safe mode. Same problem?
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IMac G5 boots, and then goes to black screen
This is not my iMac, but a friend who is using this that she got from here son who upgraded to an Intel iMac. The hardware is a G5 20 iMac. I don't have any more information since it wont power on....or have the installation disks...
The symptoms are that the machine will power on, "bong" show the blue apple screen, then the spinning lines and then suddenly a black screen and nothing more. I booted to single user via Command-S and ran fsck to ensure the disk was clean. Ir reported no errors, but halfway through the check the fans came on full. Only having experienced an Inetl iMac's fans, they were very load. When the fsck finished (with no errors) the fans turned off again. When i exitied the shell to reboot, the same thing happened again. Black screen and not repsonse.
The fact that I can get to single user shell and check the disks points to most of it working, but I'm confused as to why it gets no further.
ANy help would be appreciated as she want to migrate from her current PC based workflow to a more reliable(!) one, but this isn't helping....
Thanks,
JimmyThanks to the responders for their input. I was fearing the worst. However, it looks like the issue wasn't as serious as a broken capacitor. I don't understand why the following worked, as it's not as if the machine was always not working, but just started.
As part of the diagnostic process, the back was opened and then the memory reseated. After reboot this still failed. Then Command Option O F to get into open firmware and then
reset-nvram
set-defaults
reset-all
and the machine rebooted and came up again.
So far there have been no problems, but it looks like this was the fix. -
What would cause a prolonged blue screen during start up?
I have an iMac desktop. Recently I've had trouble with a prolonged blue screen during start up (approx. 10 mins) before it finally takes me to the login screen. Any ideas why this is happening?
Jeff P.Hi Jeff,
Open console in Applications>Utilities, check the system log for the date/time of the last problem Startup for clues. -
my computer displays grey screen and apple logo for 10 minutes or more during start up and shut down. sometimes it refuses to shut down . this issues started after installing OS lion. what do i do?
I don't think it's exactly an incomplete installation brody, but most likely in-correct permissions somewhere along the line that either happened, or became magnified during the upgrade. Also, it could be corruption as well.
First thing to do, is boot up holding down Shift key to do a safe-boot so we an clean up any corrupted OS caches, after that do another reboot, but go to the Lion recovery, and scan the HD for errors, repair any if you find them, and then try to do a Repair Permissions job.
That should fix the issue, if not, we can start doing a PRAM reset and SMC for good measure. -
My iMac starts up and then shuts itself down during the boot up process. it shuys down half way through the Apple logo appearing. any ideas how to fix?
Hi daveormond,
I'm sorry to hear you are having these issues with your iMac. If you continue to have issues with your Mac shutting down part way through the boot up process, you may find the troubleshooting steps outlined in the following articles helpful (given your description, it sounds like it could be either issue, or a combination of both):
Mac OS X: Gray screen appears during startup - Apple Support
OS X: When your computer spontaneously restarts or displays "Your computer restarted because of a problem." - Apple Support
Regards,
- Brenden -
When I try to play a song on my iPod Touch, it shows the information screen for the song and then skips to a new song but then goes back to the main playlist page without ever playing a song! Help!
thats tough man, yeah exchanging it is the best option. But why do people always leave a message saying" i'll probably just by an ipod" and it's usually followed by, "even though i don't like apple or ipod" . I mean fine, if u feel like giving up on the zen micro thats fine, i personally don't care if you're going to buy an ipod. for god sakes ipod isn't even the next alternati've mp3 players, theres plenty. Are u just trying to get the creative people saying "oh man we lost another one to ipod" cuz i'm sure they don't lose sleep over u wanting to buy an ipod instead of a zen. *done ranting*
Message Edited by bleakreserve on 02-3-2005 06:34 AM
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