Imac startup issues- green vertical lines changing to grey screen

Help! I think my 27" i7 iMac just died!
Yesterday morning, I had a kernal panic while using Safari. Restarted, ran disk utility twice. A bunch of "library shoyuld be r- instead of -rw" type errors that could not be repaired were found both times.
After second round of computer restart/disk utility, the computer started displaying green lines running vertically down the grey screen.
After around a minute and a half, the screen became grey only, no green lines- no apple logo.
I attempted to restart holding down the shift key, I saw the startup/repair process "kick in" (the horizontal repair bar running across the bottom of the screen).
Once that was finished, I got about a minute and a half worth of "spinning cursor" and then a pretty blue-lined screen (of death)
(NOTE--bright white lights are flash from camera- not on screen)
I cannot access anything now. I know that I am running whatever the current version of OS 10.8X is now.
I am stuck- anybody got any ideas?

BrBea wrote:
I have to have my serial number to give them to start the call. I have no way to access the serial number on the computer because I cannot advance past the grey/blue screen to access it. Is there a way to get the serial number on this computer off of the hardware itself?
Look on the bottom of the stand, Apple used to print them there I don't know if they still do or not. Also if you have the original box it's printed on that too.
In addition if you click about this Mac and click the version of OS X installed a couple of times the serial number will appear. In addition you can run System Information and get the serial number there too.
Finally it's not going to do much good to call Apple, you need to take the machine in for repair at your local Apple Store or AASP. I suspect your graphics card has failed.

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Green vertical lines in 3dmark03 and Temple of Elemental Evil with ti4200 VTD8x (ms-6712)

Hello,
I was wondering if someone has any idea why I have the following problem:
I purchased an MSI ti4200 VTD8x (MS-6712) video card a little while ago. I managed to install it with no problems and everything seems a-okay except for specific situations. I installed the game Temple of Elemental Evil and when I tried to play it, everything seems to work except I get green vertical lines over the entire screen while playing. Does anyone know what is causing this?
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What is the difference between DirectX apps and OpenGL/SDL apps? How can I tell the difference?
CPU and ram are not overclocked (again, I don't know how).
I just installed the latest drivers from Nvidia (v45.23) and still have the same problem in 3dmark03. I also used Driver Cleaner 2 to clean up the old driver files before installing the new driver.
3dmark03 and temple of elemental evil are so far the only apps where I have seen this.
Also, I'm not sure if this has anything to do with it but in 3dmark03 I get very low frame rates in the "Battle of Proxycon" and "Troll's lair" game tests as well (4-10 fps).
Have I not got my BIOS setting correctly configured, maybe?
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Why has my monitor suddenly begun to have a moiré pattern all over – it is even showing up on my icons on the dock? It appears to be very thin bright green vertical lines. I have a 2008 iMac which is running 10.6.8. What does this mean?

Why has my monitor suddenly begun to have a moiré pattern all over – it is even showing up on my icons on the dock? It appears to be very thin bright green vertical lines. I have a 2007 iMac which is running 10.6.8. What does this mean? I've attached some screen shots below.
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Thanks for your reply LexSchellings, There is no disc in the drive and I went through the suggestions you put forward on the phone with Apple support without any luck. I can put a disc in but it pops straight back out again without registering on finder.
The idea of using an external drive was to enable me to avoid the cost and loss of productivity whilst machine in repair... if I have to take it in to get the old drive removed than I might as well have a new internal drive put in, although I do worry about the reliability of these apple drives given my experience with this one coupled with my limited online research ... on line forums seem to be full of people with the same problem (although perhaps searching such forums is bound to make it seem a common problem as users with perfectly working machines are less likely to post (?)) Your reply suggests that no external drive will work whilst the existing drive is in place.
As a postscript: I do realise that this is a user forum ...my secondary question was asking if anyone knows how to put forward a case/complaint to Apple... I can't find a link on the support page that would enable me to do so and I was wondering if anyone on this user forum had any ideas/experience..

I have blue and green vertical lines on my iMac which is no longer covered by Applecare. Is it fixable?

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What model iMac? Could be a failing video card but maybe not. Is it that way on every screen, startup to shutdown, any time the screen is lit?
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On start up green vertical lines appear and then the become spots and imac freezes

on start up green vertical lines appear and then they become spots covering entire screen and imac freezes, does not start. I need to do a safe boot to open the imac 2009

Unfortunately this sounds like a hardware failure. Run Apple Hardware Test in extended modeat least 2-3 times back to back. If errors appear then you have confirmed my suspicion. However if no errors appear unfortunatelyyou are not out of the woods l yet because AHT is not the more reliable test. If you do know know how to run AHT please refer to:
support.apple.com/kb/ht1509

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I have a green vertical line I don't know where it come from
Solved!
Go to Solution.

Ummm...what?
You "do that last time"? Does that mean you already had tried this before posting? If so, I fear you may have tried other things as well...in which case, I request that you list out EVERYTHING you have already tried along with the specific results of each attempt.
Further -- "nothing happen"...as in, your BB did not reboot? Or do you mean that the reboot completed fine, but nothing changed regarding the symptoms you reported.
Please be very careful and explicit as the only information we have is what you say here...assumptions and guesses on our part are made much more difficult when there is little information provided.
Thanks and let us know!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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Green vertical lines on screen

dvd player sony model dvp ns57p has green vertical lines on screen. any suggestions. get a new playler blueray?

Please try the steps below:
Adjust the color settings on your TV to make sure the issue is not a simple screen adjustment.
Make sure the disc player is properly connected. The disc player should be connected directly to a TV or Audio/Video (A/V) receiver. It should not be connected to a VCR. This issue can occur if a video signal encrypted with copyright protection passes through a VCR.
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If using A/V cables, check that the red, white, and yellow plugs are securely connected to the same colored jacks on both the disc player and TV (or A/V receiver).
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Try connecting the disc player to different input jacks on the TV (or A/V receiver) and change the input mode accordingly to determine if the issue is with a particular input jack.
Try playing another video source (such as a VCR) to determine whether or not the issue only occurs with the disc player.
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Hi @DustMidnight85
Welcome to the HP Forums!
It is a wonderful place to find answers and information!
For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide Learn How to Post and More
I grasp that you are having an issue with the display but if you adjust the position of the display it disappears.
Here is a link to Display Quality Issues that may help.
As you stated it goes away when you reposition the display the connection cable may have become loose or damaged from opening and closing the display.
Here is a link to the HP Pavilion 14 Notebook PC, HP Pavilion 14 Touchsmart Notebook PC, HP Pavilion 14 Touchsmart Ultrabo.... Chapter 4 page 36 has removal instructions that may assist you in checking for that problem.
If your notebook is in warranty or you would like help please contact HP support for assistance.
Please call our technical support at 800 474 6836. If you live outside the US/Canada Region, please click the link below to get a support number for your region.
World Wide Phone Support
Best of Luck!
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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One-pixel green vertical line

My trusty G4 Titanium laptop has suddenly developed a one-pixel wide green vertical line from top to bottom, about 100 pixels or so from the right. It stays there whatever resolution I set. It seems to be only the laptop screen itself, since it doesn't show up on an external monitor or data projector. The laptop is about 4-1/2 years old (it only seems older). Any ideas?
PowerBook G4 Titanium Mac OS X (10.4.7) Machine Model: PowerBook3.4, CPU Type: PowerPC G4 (2.1)

Wilkommen zu Apple Discussions!
Sounds like the inverter board is having troubles for the LCD. Stand alone LCDs have been known to have the same problem sometimes right out of the box.
The machine is also old enough to have its clock battery replaced. It wouldn't hurt to try to replace that battery, but if it doesn't fix the issue, I'd basically use the machine as a desktop versus a laptop. Repairing the screen usually would cost more than the laptop is worth. Some of these places may offer international repair service:
http://www.techrestore.com/
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4200 vtd 128 8x- Green vertical lines

I am getting green vertical lines about a pixel or two wide and about a character space between them. I have moved the monitor away from every thing(computer, speakers etc) and then changed monitors because i thought it was that. I have the latest bios and drivers. Any ideas or any more info you need?
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A single vertical line can't be the FL inverter. The FL inverter (Flurescent Lamp inverter) is only in charge for the brightness of the screen.
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Get a quote from the Toshiba Service or (if you are up to it on your own risk) disassemble the screen, locate the trouble (by moving the display and reseating the described possible sources of malfunction) and finally search on e-bay to buy a cheap replacement screen that can be even lower than 50 Euro.
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Green vertical line

Hi there
A green vertical line has now appeared on the screen of my MacBook Pro 13inch and won't go away, even after restarting.
Does anyone know what this is? How do I get rid of it?
Is the problem covered by AppleCare?
Thanks

I don't think there is anything you can do for it at home. That indicates a probelm with the display itself, its cabling, or the video chipset.
About the only thing you can do is diagnostic, not curative. Attach an external monitor and see it the line persists. If it goes away on the external, then the probelm is probably limited to the display or its cabing. If it persists, the probelm is likely in the video chipset. None of these problems are easy for an end-user to address unless you are skilled as working with tiny parts and have the proper tools and troubleshooting guides.
As long has the computer has ot suffered physical damage, this is exactly the sort of thing that makes AppleCare worthwhile. I'd take it to Apple as soon as feasible.
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Well not much of a mystery, your GPU/cable/connection is failing.
take it in for a free over the counter assessment.
Genius reservation http://www.apple.com/retail/geniusbar/
on-line https://getsupport.apple.com/GetproductgroupList.action
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Imac startup issues- green vertical lines changing to grey screen

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