*** This bug is a duplicate of bug 727041 ***
https://bugs.launchpad.net/bugs/727041
On Sat, Apr 2, 2011 at 1:00 AM, Walter Garcia-Fontes
<walter.gar...@upf.edu> wrote:
> Public bug reported:
>
> Binary package hint: unity
>
> I clicked the change desktop icon, and when the new desktop opened the
> screen started flickering or blinking very fast and the systema got
> unresponsive, as if the x server was about to crash. But then it came
> back and I haven been working without more problems. It lasted about 20
> seconds.
That's a bug in the nvidia driver - you should see some error messages
in dmesg about that.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 11.04
> Package: unity 3.6.8-0ubuntu3
> ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
> Uname: Linux 2.6.38-7-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 270.30 Fri Feb 25 14:34:55
> PST 2011
> GCC version: gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-7ubuntu1)
> Architecture: amd64
> CompizPlugins:
> [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
> CompositorRunning: compiz
> Date: Fri Apr 1 18:55:53 2011
> DistUpgraded: Log time: 2011-04-01 11:43:10.845270
> DistroCodename: natty
> DistroVariant: ubuntu
> GraphicsCard:
> nVidia Corporation G84 [Quadro FX 1700] [10de:040f] (rev a1) (prog-if 00
> [VGA controller])
> Subsystem: nVidia Corporation Device [10de:049a]
> InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
> InstallationMedia_: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
> InstallationMedia__: Ubuntu 10.10 "Maverick Meerkat" - Release amd64
> (20101007)
> InstallationMedia___: Ubuntu 10.10 "Maverick Meerkat" - Release amd64
> (20101007)
> JockeyStatus: xorg:nvidia_current - NVIDIA accelerated graphics driver
> (Proprietary, Enabled, In use)
> MachineType: Dell Inc. Precision WorkStation T3400
> ProcEnviron:
> LANGUAGE=en_US:en
> LANG=en_US.UTF-8
> SHELL=/bin/tcsh
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic
> root=UUID=dadc68cb-c217-4aef-a751-ba0b61137c4a ro quiet splash vt.handoff=7
> ProcVersionSignature_: Ubuntu 2.6.38-7.39-generic 2.6.38
> ProcVersionSignature__: Ubuntu 2.6.38-7.39-generic 2.6.38
> ProcVersionSignature___: Ubuntu 2.6.38-7.39-generic 2.6.38
> Renderer: Unknown
> SourcePackage: unity
> UpgradeStatus: Upgraded to natty on 2011-04-01 (0 days ago)
> dmi.bios.date: 06/04/2009
> dmi.bios.vendor: Dell Inc.
> dmi.bios.version: A09
> dmi.board.name: 0TP412
> dmi.board.vendor: Dell Inc.
> dmi.chassis.type: 7
> dmi.chassis.vendor: Dell Inc.
> dmi.modalias:
> dmi:bvnDellInc.:bvrA09:bd06/04/2009:svnDellInc.:pnPrecisionWorkStationT3400:pvr:rvnDellInc.:rn0TP412:rvr:cvnDellInc.:ct7:cvr:
> dmi.product.name: Precision WorkStation T3400
> dmi.sys.vendor: Dell Inc.
> version.compiz: compiz 1:0.9.4git20110322-0ubuntu5
> version.libdrm2: libdrm2 2.4.23-1ubuntu5
> version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
> version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
> version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
> version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
> version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu4
> version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
> 1:0.0.16+git20110107+b795ca6e-0ubuntu6
>
> ** Affects: unity (Ubuntu)
> Importance: Undecided
> Status: New
>
>
> ** Tags: amd64 apport-bug compiz-0.9 natty running-unity ubuntu
>
> --
> You received this bug notification because you are a member of Unity
> Bugs, which is subscribed to unity in Ubuntu.
> https://bugs.launchpad.net/bugs/747547
>
> Title:
> Screen starts flickering/blinking when changing desktop
>
> Status in “unity” package in Ubuntu:
> New
>
> Bug description:
> Binary package hint: unity
>
> I clicked the change desktop icon, and when the new desktop opened the
> screen started flickering or blinking very fast and the systema got
> unresponsive, as if the x server was about to crash. But then it came
> back and I haven been working without more problems. It lasted about
> 20 seconds.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 11.04
> Package: unity 3.6.8-0ubuntu3
> ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
> Uname: Linux 2.6.38-7-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 270.30 Fri Feb 25 14:34:55
> PST 2011
> GCC version: gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-7ubuntu1)
> Architecture: amd64
> CompizPlugins:
> [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
> CompositorRunning: compiz
> Date: Fri Apr 1 18:55:53 2011
> DistUpgraded: Log time: 2011-04-01 11:43:10.845270
> DistroCodename: natty
> DistroVariant: ubuntu
> GraphicsCard:
> nVidia Corporation G84 [Quadro FX 1700] [10de:040f] (rev a1) (prog-if 00
> [VGA controller])
> Subsystem: nVidia Corporation Device [10de:049a]
> InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
> InstallationMedia_: Ubuntu 10.10 "Maverick Meerkat" - Release amd64
> (20101007)
> InstallationMedia__: Ubuntu 10.10 "Maverick Meerkat" - Release amd64
> (20101007)
> InstallationMedia___: Ubuntu 10.10 "Maverick Meerkat" - Release amd64
> (20101007)
> JockeyStatus: xorg:nvidia_current - NVIDIA accelerated graphics driver
> (Proprietary, Enabled, In use)
> MachineType: Dell Inc. Precision WorkStation T3400
> ProcEnviron:
> LANGUAGE=en_US:en
> LANG=en_US.UTF-8
> SHELL=/bin/tcsh
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic
> root=UUID=dadc68cb-c217-4aef-a751-ba0b61137c4a ro quiet splash vt.handoff=7
> ProcVersionSignature_: Ubuntu 2.6.38-7.39-generic 2.6.38
> ProcVersionSignature__: Ubuntu 2.6.38-7.39-generic 2.6.38
> ProcVersionSignature___: Ubuntu 2.6.38-7.39-generic 2.6.38
> Renderer: Unknown
> SourcePackage: unity
> UpgradeStatus: Upgraded to natty on 2011-04-01 (0 days ago)
> dmi.bios.date: 06/04/2009
> dmi.bios.vendor: Dell Inc.
> dmi.bios.version: A09
> dmi.board.name: 0TP412
> dmi.board.vendor: Dell Inc.
> dmi.chassis.type: 7
> dmi.chassis.vendor: Dell Inc.
> dmi.modalias:
> dmi:bvnDellInc.:bvrA09:bd06/04/2009:svnDellInc.:pnPrecisionWorkStationT3400:pvr:rvnDellInc.:rn0TP412:rvr:cvnDellInc.:ct7:cvr:
> dmi.product.name: Precision WorkStation T3400
> dmi.sys.vendor: Dell Inc.
> version.compiz: compiz 1:0.9.4git20110322-0ubuntu5
> version.libdrm2: libdrm2 2.4.23-1ubuntu5
> version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
> version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
> version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
> version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
> version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu4
> version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
> 1:0.0.16+git20110107+b795ca6e-0ubuntu6
>
--
Sam Spilsbury
--
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/747547
Title:
Screen starts flickering/blinking when changing desktop
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