Error report randomly appears, sometimes with noticeable interface freeze.
The same goes while playin' Team Fortress 2, but with clearly visible image and sound stuttering(at that point switchin' to tty and back helps).
Created attachment 72459 [details]
Information collected by Apport.
Attachments over 3MB are't allowed, so I just compressed it.
*** This bug has been marked as a duplicate of bug 54226 ***