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I installed 12.04 on a brand spanking new Mac Mini 5.1 yesterday and earlier today I noticed a couple of artefacts that appeared on random. It is like parts of the screen gets scrambled. And a couple of hours ago the mac freezed completely. Is this a driver problem, or part of something more sinister (hardware, overheating, ram problem).

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

example of the problem:

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closed as off topic by Jorge Castro, fossfreedom May 22 '12 at 18:17

Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

Welcome to Ask Ubuntu! This question should instead be filed as a bug report, and as such is off-topic, thanks! Instructions on filing a bug report are here. –  Jorge Castro May 21 '12 at 13:44
I have the same problem. Any reference to a bug report? This happens in 12.10 and 13.04 as well. –  user239558 Apr 29 '13 at 6:55