My initial guess would be a hardware problem (I had almost identical symptoms on a 5xx card a few months ago, that went away once I swapped it out with a new card), but just in case it isn't, I can send the bug report upstream first and see what they say.
-- Graphics Card Fan Suddenly Stopped While Using Computer https://bugs.launchpad.net/bugs/554783 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
