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I did a fresh install of Ubuntu 12.04 64bit on my machine, a HP 431 with Intel Core i5 Sandybridge-based processor, ATI Radeon 6470M , 2 GB RAM

Nb : I have turned off the ATi driver. After 2 weeks i found my screen getting purple line and hangs. Here my screenshot. What is this?

what is this?

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closed as off topic by Bruno Pereira May 14 '12 at 7:27

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.

I take it this happens in other software as well as chrome? –  jackweirdy May 13 '12 at 17:04
Welcome to Ask Ubuntu! This question should instead be filed as a bug report, thanks! Instructions here. –  Jorge Castro May 14 '12 at 6:38

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