Comments on: Random green pixels on my Mac display

By: Genus

Genus — Mon, 26 Sep 2011 02:17:46 +0000

@Rotten Apples
I just gotten my iMac (core i7). on the first boot i had a lot of these green dots on the great screen. then the system rebooted and all was fine… for about 4 days then i noticed them re-appearing after long sleep. That really is disappointing, especially having paid over $2,000, quite a price for a lemon.

now I’m gonna to get it resolved with apple.

By: Matt

Matt — Mon, 30 Aug 2010 09:51:39 +0000

@Rotten Apples: Sounds like you’ve had an unlucky streak with your iMac – I hope you have a working one now…

@boescha: In case you missed the update to this story, it turned out to be the GPU, and I had to get my logic board replaced. Works like a charm now.

By: boescha

boescha — Mon, 23 Aug 2010 14:59:00 +0000

Hi all,

i have the exact same problems with the green dots. But they don’t appear when i boot up windows using bootcamp. I don’t really get it. My dots also disappear, when i use only 32000 colors…

weird.

By: Rotten Apples

Rotten Apples — Mon, 23 Aug 2010 03:07:51 +0000

3 weeks ago I bought a new quad-core iMac (i7). The first machine had a burnt out pixel on the display, so two weeks later I exchanged it for a new machine (same make and model), which is the one I am using now. I am running into this green pixel issue too, but it’s not just one or two pixels, it’s entire regions in images where the colors are darker. I’m super annoyed with this… especially with this being the 2nd machine that I’ve swapped out with Apple.

It happens when the machine awakes from a semi-long sleep, and the problem persists for about 4 or so minutes, and then it magically stops. WTF Apple? I can’t be totally bitter because it’s under warranty and I also have applecare for it, but this is just lame. Once again, undoubtedly, I am sure I am going to have to make an appointment with a “genius”, haul my ass and the machine to the mall, prove my case, deal with lame Apple staff, swap it out and reinstall all my software for a THIRD time. Apple should be paying me for as much downtime as I’ve already had dealing with their faulty and defective hardware (and also what is becoming their lame staff). This blows.

By: Shi

Shi — Fri, 31 Jul 2009 06:14:00 +0000

Have a mack pro quad 2.66 and mine seems to have started after updating to leopard. I’m thinking about going back to 10.4. My gut tells me it’s an operating system or quicktime ting. final cut has been doing some dodgy display things as well. I guess it could be the v card but allot of people with different hardware are having similar problems.

By: Pat Reilly

Pat Reilly — Thu, 21 May 2009 16:03:53 +0000

Here is a screen shot of what is I’m dealing with right now.

http://www.purei.com/mac_bugs/bug.jpg

By: Matt

Matt — Sun, 28 Dec 2008 20:51:06 +0000

@Aaron S: Sounds like you might want to get it fixed under warranty in that case! Do Mac Pros have separate video cards? If so then you might only need the card swapped out.

By: Aaron S

Aaron S — Fri, 26 Dec 2008 21:08:59 +0000

I actually just bought a brand new 8-core Mac Pro in August 08, upgraded to 4 gigs of RAM, and I’m having this exact problem with green and purple pixels…

By: Dave H

Dave H — Thu, 04 Dec 2008 12:34:00 +0000

Thanks. Looks like I’m off to my nearest Apple store this tomorrow.

By: Matt

Matt — Thu, 04 Dec 2008 00:40:19 +0000

@Dave H: I’m no expert, but yes it sounds like your video card is on the way out (possibly its RAM). Though you could try running the hardware test and/or reinstalling Mac OS to confirm.