I am seeing this same bug on an AMD chipset in quantal under heavy CPU load.
Christopher, before you send your obviously automated response, I have just reported this bug (https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1210397); I'm sure having many duplicate bug reports that are all the same issue will help greatly to those resolving it</sarcasm> Christopher, in the 8 months since this issue was reported, you have done nothing except provide semi-automated replies to people. The replies you have given are not in any way targeted or helpful for those attempting to resolve this issue, and additionally your replies make it appear that the bug is actually being triaged and dealt with, where it is obviously not been dealt with in any way. Your replies have even driven the bug reporter to completely stop using Ubuntu; yet your _only_ response is to mark the bug as Invalid, an action that is itself wrong, as the bug still stands, even if the reporter has deleted their account. It would have been better if you had made literally no comments or actions on this ticket; then, at least, someone who actually cares about the bug might have become involved. I know that my account is new, and so I will probably be dismissed out of hand as another troll or clueless noob; the fact that I have been using Ubuntu as my daily OS continually since May 2010, and that I am a professional software developer, and that I care deeply about Ubuntu and it's goals should give some lie to that. I do not rise to make these sorts of accusations lightly, however in this case I believe they are warranted. ** Changed in: nvidia-graphics-drivers (Ubuntu) Status: Invalid => Confirmed -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/1077616 Title: 10de:0ca3 (EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed Status in “nvidia-graphics-drivers” package in Ubuntu: Confirmed Bug description: Random hard locks on fresh installs of Ubuntu 12.10 (64 bit), requiring hard reboot. Keyboard is unresponsive, and unable to Ctrl+Alt+F5 etc. This happens with any Desktop environment (GNOME, Cinnamon, KDE). Using NVidia GT240 with NVidia binary blob. This appears to be no pattern to when this happens - can be using any application. Happens several times per day. With Nouveau my system usually freezes within a couple of minutes of logging in. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7 Uname: Linux 3.5.0-18-generic x86_64 NonfreeKernelModules: nvidia .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 304.51 Tue Sep 18 17:16:56 PDT 2012 GCC version: gcc version 4.7.2 (Ubuntu/Linaro 4.7.2-2ubuntu1) .tmp.unity.support.test.0: ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None Date: Sun Nov 11 11:38:46 2012 DistUpgraded: Fresh install DistroCodename: quantal DistroVariant: ubuntu DkmsStatus: nvidia-current-updates, 304.51, 3.5.0-16-generic, x86_64: installed nvidia-current-updates, 304.51, 3.5.0-17-generic, x86_64: installed nvidia-current-updates, 304.51, 3.5.0-18-generic, x86_64: installed GraphicsCard: NVIDIA Corporation GT215 [GeForce GT 240] [10de:0ca3] (rev a2) (prog-if 00 [VGA controller]) Subsystem: CardExpert Technology Device [10b0:0401] InstallationDate: Installed on 2012-10-01 (40 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta amd64 (20120930) MachineType: System manufacturer P5Q3 DELUXE MarkForUpload: True ProcEnviron: LANGUAGE=en_GB:en TERM=xterm PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-18-generic root=UUID=227be926-89cc-48ce-ac13-7a10a38896b3 ro quiet splash SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/11/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1702 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P5Q3 DELUXE dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1702:bd12/11/2008:svnSystemmanufacturer:pnP5Q3DELUXE:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5Q3DELUXE:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: P5Q3 DELUXE dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz N/A version.ia32-libs: ia32-libs 20090808ubuntu36 version.libdrm2: libdrm2 2.4.39-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu1 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120913.8637f772-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.2-0ubuntu3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/1077616/+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