Debojyoti Mukherjee, 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 (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p xserver-xorg-video-nouveau REPLACE-WITH-BUG-NUMBER Please note, given that the information from the prior release is already available, doing this on 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 ** Changed in: xserver-xorg-video-nouveau (Ubuntu) Importance: Undecided => Low ** Changed in: xserver-xorg-video-nouveau (Ubuntu) Status: Confirmed => Incomplete -- 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/1065182 Title: Screen corrupts after user switching Status in “xserver-xorg-video-nouveau” package in Ubuntu: Incomplete Bug description: To recreate click swith user from user menu->Enter password ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xorg 1:7.6+12ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-31.50-generic-pae 3.2.28 Uname: Linux 3.2.0-31-generic-pae i686 NonfreeKernelModules: nvidia .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86 Kernel Module 173.14.35 Thu May 31 12:00:16 PDT 2012 GCC version: gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu13 Architecture: i386 CheckboxSubmission: 208feba523447653f9d256288b891804 CheckboxSystem: edda5d4f616ca792bf437989cb597002 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell] CompositorRunning: compiz CurrentDmesg: [ 107.040014] eth0: no IPv6 routers present Date: Wed Oct 10 23:51:18 2012 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu DkmsStatus: nvidia-173, 173.14.35, 3.2.0-31-generic-pae, i686: installed nvidia-current, 295.40, 3.2.0-31-generic-pae, i686: installed ExtraDebuggingInterest: Yes, even including gdb or git bisection work if needed GraphicsCard: NVIDIA Corporation C68 [GeForce 7050 PV / nForce 630a] [10de:053b] (rev a2) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. M2N68-AM Motherbord [1043:8308] InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3) JockeyStatus: xorg:nvidia_173 - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use) xorg:nvidia_173_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use) xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Disabled, Not in use) xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use) Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: System manufacturer System Product Name ProcEnviron: LANGUAGE=en_IN:en PATH=(custom, no user) LANG=en_IN SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-31-generic-pae root=UUID=8c6e85a1-9b7d-47c5-8bdb-1490ae388c89 ro recovery nomodeset SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) XorgConf: Section "Device" Identifier "Default Device" Option "NoLogo" "True" EndSection dmi.bios.date: 07/26/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0603 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M2N68-AM dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0603:bd07/26/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM2N68-AM:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz 1:0.9.7.8-0ubuntu1.4 version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.3+8.0.2-0ubuntu3.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.3+8.0.2-0ubuntu3.2 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.8 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1065182/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

