Weird graphical artefacts -- black squares

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Level 1

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Weird graphical artefacts -- black squares

Hi all,

I've got this weird graphics artefact that I sometimes see on my MBPro17. It's hard to describe, so I made a screenshot:

http://jfouhy.googlepages.com/mac-graphics-bug.jpg
(ignore the slight fuzzyness; that's just jpeg compression)

In this case, the boxes are black, but they're often red, or sometimes other colours. It only happens when I'm getting the graphics card to do something "difficult", eg expose with 100+ windows, 3d application (particularly if the 3d app doesn't have focus).

Anyone seen this before, or know what to do?

MacBook Pro 17", Mac OS X (10.4.7)

Posted on Aug 21, 2006 10:56 PM

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Answer 1

Jun 12, 2018 5:40 PM in response to Repton

Yes, I've seen that on my newly replaced MacBook Pro 15". It happens randomly, maybe once a day. I've had my logic board replaced last week and I've just noticed it started happening about one day later. It seems to have been happening about once every 4-5 hours or so.

I'm not sure if it's hardware related or OS X 10.4.7 related, since I'd only been running 10.4.7 for about 3 days before I brought my Macbook Pro in for service.

Any ideas?

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Answer 2

Jun 12, 2018 5:40 PM in response to Community User

Okay, definitely not 10.4.7. I did a complete wipe of my HD and installed using the new 10.4.6 install disks they gave me when my main board was replaced. It locked up during the install itself. 😟

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Answer 3

JPT62089

Level 1

35 points

Aug 26, 2006 1:38 AM in response to Repton

Yay artifacts rule 😀

Through my experiences with artifacts I found out that it was a faulty graphics card. This was on a windows machine, so it could be a whole nother ball park with a Mac.

So maybe call Apple or go into an Apple Store and see what they can do fer ya 🙂

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Answer 4

Aug 31, 2006 10:30 PM in response to Repton

Most of the time artifacts are caused by overheating in the gpu and because the MBP runs very hot i am sure that is probably the case. One way to test this is make sure the computer is completely off and cooled and then run a high gpu intensive game. If the artifacts only start when the case gets hot then it is probably an overheating issue.

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