Jun 1 23:26:21 anonymous kernel: [39572.292561] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - Ch 6/0 Mthd 0x0060 Data 0x8000000f Jun 1 23:38:43 anonymous kernel: [40313.716456] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - Ch 6/0 Mthd 0x0060 Data 0x8000000f 01:00.0 VGA compatible controller: NVIDIA Corporation G84 [GeForce 8600 GT] (rev a1) libgl1-mesa-dri:amd64 - 9.1.1-0ubuntu3 I was away from keyboard, came back, and noticed the system was frozen.
What kernel/xf86-video-nouveau were you using? Does this still happen with the latest software? (kernel 3.11, xf86-video-nouveau 1.0.9, mesa 9.2)?
Shortly after this, the graphics card died. The graphics was garbled even at POST for couple of times, then it died alltogeher. So we can close this bug as a hardware failure.
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