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I recently bought a netbook Lenovo Thinkpad Edge E130 (Video card Intel HD Graphics, CPU Intel Pentium B997 ULV) on which I installed Ubuntu 12.10 64 bits.

A systematic bug makes it annoying to use the laptop.

Regulary, a pop-up shows up, says that the system is bugging. Then, another one, which says:

Apport has detected a possible GPU hang. Did your system recently lock up and/or require a hard reboot?"

If I read the bug report, it says:

 [sandybridge-m-gt1] GPU lockup IPEHR: 0x41100000 IPEHR:0x0b140001 

If I understand, it affects xserver-xorg-video-intel, but I don't understand what is the problem.

Here is the output from my /var/log/Xorg.0.log

How can I fix it?

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