AnGus, thank you for testing the latest mainline kernel. Would it be true that if you uninstall virtualbox, this problem is not reproducible in either the mainline or default Ubuntu kernel?
** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1181897 Title: 046d:c06a [Compaq Presario CQ3260AN Desktop PC] Mouse freezes randomly Status in “linux” package in Ubuntu: Incomplete Bug description: I encountered this problem in Ubuntu 11.04, 11.10, 12.04 and now 13.04. I never encountered it with 12.10 so I'm frustrated/disappointed that it's reappeared in 13.04. The mouse will randomly freeze and the only solution is to reboot. Usually I can open a terminal window (Ctrl-Alt-T) to try and gather information but occassionally I will encounter a complete system freeze. My Xorg log records no events and dmesg only shows a single change from boot (usb 2-1: USB disconnect, device number 2). I've attached: system and version details Xorg.o.log at boot and as there's no difference at error I haven't attached fiff files Dmesg at boot and after error and the diff output. The USB disconnect message appears after some seconds rather than immediately (perhaps some timeout event). lsusb output lspci output uname output ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-21.32-generic 3.8.8 Uname: Linux 3.8.0-21-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Mon May 20 09:49:52 2013 DistUpgraded: Fresh install DistroCodename: raring DistroVariant: ubuntu DkmsStatus: virtualbox, 4.2.10, 3.8.0-19-generic, x86_64: installed virtualbox, 4.2.10, 3.8.0-21-generic, x86_64: installed ExtraDebuggingInterest: Yes GpuHangFrequency: Several times a day GpuHangReproducibility: Seems to happen randomly GpuHangStarted: Immediately after installing this version of Ubuntu GraphicsCard: Advanced Micro Devices [AMD] nee ATI RV710 [Radeon HD 4350/4550] [1002:954f] (prog-if 00 [VGA controller]) Subsystem: Micro-Star International Co., Ltd. Device [1462:1613] InstallationDate: Installed on 2013-05-02 (17 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: Compaq-Presario VT568AA-ABG CQ3260AN MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-21-generic root=UUID=b662ee11-a7f4-4f4a-a170-f616d8df083e ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/06/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 5.15 dmi.board.name: Narra6 dmi.board.vendor: PEGATRON CORPORATION dmi.board.version: 6.01 dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5.15:bd11/06/2009:svnCompaq-Presario:pnVT568AA-ABGCQ3260AN:pvr:rvnPEGATRONCORPORATION:rnNarra6:rvr6.01:cvnHewlett-Packard:ct3:cvrChassisVersion: dmi.product.name: VT568AA-ABG CQ3260AN dmi.sys.vendor: Compaq-Presario version.compiz: compiz 1:0.9.9~daily13.04.18.1~13.04-0ubuntu1 version.ia32-libs: ia32-libs 20090808ubuntu36 version.libdrm2: libdrm2 2.4.43-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.1-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.1-0ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1 xserver.bootTime: Mon May 20 09:33:11 2013 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.13.3-0ubuntu6 xserver.video_driver: radeon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181897/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp