Xorg freeze

[John Delaney]

As you will be able to tell from the log files, I am testing out Utopic on an iMac. Prior to experiencing these problems I had been using 14.04 with no display problems whatsoever.

If I use the nouveau driver then I get regular 100% CPU spikes in /usr/bin/X. If I install the recommended nvidia driver (nvidia-331) and reboot then lightdm appears for a few seconds and then I get a blank screen (or I manage to log in quickly but then it locks up once we're in Unity, Gnome, KDE, LXDE or Cinnamon - tried them all!). Once it's reached this state, if I SSH to the machine and run htop then it indicates 100% kernel CPU usage (i.e. the htop CPU usage bar is coloured entirely red); although no individual process is listed as using more than 0.5% CPU or 2.5% RAM). Load average is 6.0-8.0.

I have created a new user account in case it was a setting in a config file somewhere in my home directory, but I get the same result with the test account.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.16.0-11.16-generic 3.16.1
Uname: Linux 3.16.0-11-generic x86_64
NonfreeKernelModules: nvidia wl
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 331.89 Tue Jul 1 13:30:18 PDT 2014
 GCC version: gcc version 4.9.1 (Ubuntu 4.9.1-9ubuntu1)
ApportVersion: 2.14.6-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
Date: Fri Aug 29 11:36:39 2014
DistUpgraded: Fresh install
DistroCodename: utopic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GpuHangFrequency: Continuously
GpuHangReproducibility: Yes, I can easily reproduce it
GpuHangStarted: Immediately after installing this version of Ubuntu
GraphicsCard:
 NVIDIA Corporation G92M [GeForce 8800M GTS] [10de:0609] (rev a2) (prog-if 00 [VGA controller])
   Subsystem: Apple Inc. GeForce 8800 GS [106b:00a7]
InstallationDate: Installed on 2013-04-16 (500 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64+mac (20130402.1)
MachineType: Apple Inc. iMac8,1
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-11-generic root=UUID=763a4f58-0196-4804-b294-758af462938b ro quiet splash
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/09/08
dmi.bios.vendor: Apple Inc.
dmi.bios.version: IM81.88Z.00C1.B00.0802091538
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Mac-F227BEC8
dmi.board.vendor: Apple Inc.
dmi.board.version: PVT
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 13
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F227BEC8
dmi.modalias: dmi:bvnAppleInc.:bvrIM81.88Z.00C1.B00.0802091538:bd02/09/08:svnAppleInc.:pniMac8,1:pvr1.0:rvnAppleInc.:rnMac-F227BEC8:rvrPVT:cvnAppleInc.:ct13:cvrMac-F227BEC8:
dmi.product.name: iMac8,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
version.compiz: compiz 1:0.9.12+14.10.20140812-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.2.6-1ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.2.6-1ubuntu3
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu9
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Fri Aug 29 11:33:31 2014
xserver.configfile: default
xserver.errors: open /dev/fb0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.15.1-0ubuntu9

[penalvch (penalvch)]

John Delaney, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal as it will automatically gather and attach updated debug information to this report:

apport-collect -p xorg 1363034

Please ensure you have xdiagnose installed, and that you click the Yes button for attaching additional debugging information.

As well, given the information from the prior release is already available, testing a release prior to the development one would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]