It seems you're running quantal with the wrong nouveau driver. The nouveau driver you're running is the xorg-edgers version for precise.
So, switch to xorg-edgers for quantal and if that doesn't solve your problem then purge xorg-edgers. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1039125 Title: [drm] nouveau 0000:02:00.0: PFIFO_CACHE_ERROR - Ch 2/2 Mthd 0x0800 Data 0x00000000 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1039125/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
