iMac 27" - Screen Flickering

[gb1631]

As they explained it to me, it is the cable that connects the screen to the cpu.

You are correct, it was the cable that hooks to the screen.

 

[rigid]

My 2 and a half weekish old imac just started flickering for the first time.

 

[farorex]

Flicker problem update

OK, finally went to the Apple Store here after discussing again with Apple Care. The flicker problem is still occasional on mine. Unfortunately we didn't get this resolved - so I'd be really clear with Apple Care or the Store before going in so you don't waste your time like I did. The "Genius" and store manager said that they still didn't know exactly what the problem was. They think it's some combo of firmware and the graphics card. They could not fix at the store and would have to send in - with no assurance it would be fixed perfectly or that even a new one would not have the same problem. They said there would be a second firmware update "soon", and possibly a modified card. They didn't seem to be aware of a cable connection issue. They said I could leave the computer and have something back in 3-5 business days or wait. None of this sounded great - so I've decided to wait a bit longer - again, my flicker is very sporadic and not that bad. BTW - again, if I reboot it often goes away. There is also a keyboard shortcut to re-boot just the graphics.... option - control - eject and then click after it goes dark - in case this helps anyone.

 

[HDH]

OK, finally went to the Apple Store here after discussing again with Apple Care. The flicker problem is still occasional on mine. Unfortunately we didn't get this resolved - so I'd be really clear with Apple Care or the Store before going in so you don't waste your time like I did. The "Genius" and store manager said that they still didn't know exactly what the problem was. They think it's some combo of firmware and the graphics card. They could not fix at the store and would have to send in - with no assurance it would be fixed perfectly or that even a new one would not have the same problem. They said there would be a second firmware update "soon", and possibly a modified card. They didn't seem to be aware of a cable connection issue. They said I could leave the computer and have something back in 3-5 business days or wait. None of this sounded great - so I've decided to wait a bit longer - again, my flicker is very sporadic and not that bad. BTW - again, if I reboot it often goes away. There is also a keyboard shortcut to re-boot just the graphics.... option - control - eject and then click after it goes dark - in case this helps anyone.

Sounds exactly like what I've gone through. I'm on my third machine, sporadic flickering and black outs. My second machine was worse. I spoke with AppleCare, they said the problem is still not resolved, so I'm returning this and won't bother with iMacs again.

Hope the new line of MBPs come out soon. That's what I REALLY want.

 

[RumorzGuy]

Never fear my friends, because I have just discovered that THE signal has been sent, and help is now on the way to fix ALL of our defective iMacs!

See for yourselves here! Move over Bruce Wayne!:

Holy gigabytes Batman!