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 Desktop Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/1037726 Title: xorg crashes with message: [drm] nouveau 0000:01:00.0: Failed to idle channel 2. Status in “xserver-xorg-video-nouveau” package in Ubuntu: Confirmed Bug description: I am finding that after resuming and starting Firefox will cause the Xorg to crash switching between a static Desktop and the repeating message below. [drm] nouveau 0000:01:00.0: Failed to idle channel 2. It sounds very similar to this Fedora bug: https://bugzilla.redhat.com/show_bug.cgi?id=847479 ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xserver-xorg-video-nouveau 1:1.0.1-4~ubuntu1 ProcVersionSignature: Ubuntu 3.5.0-10.10-generic 3.5.1 Uname: Linux 3.5.0-10-generic x86_64 ApportVersion: 2.4-0ubuntu8 Architecture: amd64 CheckboxSubmission: beb20350994a383f56f97def0e07bae1 CheckboxSystem: d00f84de8a555815fa1c4660280da308 Date: Thu Aug 16 19:51:20 2012 DistUpgraded: 2012-08-12 23:17:31,907 DEBUG enabling apt cron job DistroCodename: quantal DistroVariant: ubuntu GraphicsCard: NVIDIA Corporation G86M [Quadro FX 360M] [10de:042d] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:01ff] InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120223.1) MachineType: Dell Inc. Precision M4300 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcEnviron: LANGUAGE=en_GB:en TERM=xterm PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-10-generic root=UUID=64e61881-95ee-4b3c-8714-c08c940f4966 ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-nouveau UpgradeStatus: Upgraded to quantal on 2012-08-12 (3 days ago) dmi.bios.date: 01/20/2010 dmi.bios.vendor: Dell Inc. dmi.bios.version: A15 dmi.board.name: 0UY141 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA15:bd01/20/2010:svnDellInc.:pnPrecisionM4300:pvr:rvnDellInc.:rn0UY141:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Precision M4300 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.8+bzr3249-0ubuntu4 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.38-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.12.99.904-0ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120713.6ef1ad6a-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.3-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.1-4~ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1037726/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
