I'm running Xubuntu 13.10. The problem never seemed to crop up on 13.04, though I didn't use that for long. It only ever seems to happen when Firefox has been running for a while, though the last time I managed to set it off by running a 3d application (geomview) while Firefox was running.
My hardware: $ lspci | grep -i nvidia 05:00.0 VGA compatible controller: NVIDIA Corporation GT218 [NVS 300] (rev a2) 05:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1) The log looks like this : less /var/log/kern.log | grep nouveau Dec 10 14:54:03 coyotl kernel: [519091.686252] nouveau E[ DRM] GPU lockup - switching to software fbcon Dec 10 14:54:42 coyotl kernel: [519130.694586] nouveau E[Xorg[1174]] failed to idle channel 0xcccc0001 [Xorg[1174]] Dec 10 14:54:57 coyotl kernel: [519145.687772] nouveau E[Xorg[1174]] failed to idle channel 0xcccc0001 [Xorg[1174]] Dec 10 14:54:59 coyotl kernel: [519147.687083] nouveau E[ PFIFO][0000:05:00.0] channel 4 [Xorg[1174]] unload timeout Dec 10 14:55:14 coyotl kernel: [519162.680028] nouveau E[Xorg[1174]] failed to idle channel 0xcccc0000 [Xorg[1174]] Dec 10 14:55:29 coyotl kernel: [519177.673203] nouveau E[Xorg[1174]] failed to idle channel 0xcccc0000 [Xorg[1174]] Dec 10 14:55:31 coyotl kernel: [519179.672478] nouveau E[ PFIFO][0000:05:00.0] channel 3 [Xorg[1174]] unload timeout etc... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1037726 Title: xorg crashes with message: [drm] nouveau 0000:01:00.0: Failed to idle channel 2. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1037726/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
