4

Occasionally my macbook pro (15-inch, Early 2011 with mountain lion 10.8.2) displays random garbled blocks. This happens on external Apple displays and the laptop display. See photo.

enter image description here

Improve this question
2
  • Are you using gfxCardStatus by Cody Krieger? (If yes, update to the latest version.)
    – MacLemon
    Commented Sep 29, 2012 at 19:12
  • This problem continued to persist. I had to get the logic board replaced to fix this issue
    – tommy chheng
    Commented Jan 23, 2014 at 20:36

1 Answer 1

Reset to default
1

We had a lot of these problems in our store and in the most cases the graphic card was broken. You should run the Apple Hardware Test / Apple Diagnostics and look at the results.

Improve this answer
1
  • I've had the same thing on two machines. The graphics card was bad and Apple replaced it under warranty. In one case, twice in about 5 weeks.
    – Ɱark Ƭ
    Commented Jan 21, 2014 at 17:13

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .