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[Bug 773387] Re: Left monitor displays blank screen in Unity

 

** Description changed:

  Binary package hint: xorg
  
  My laptop screen has a monitor to the left of it with Xinerama enabled.
  After updating to 11.04 and restarting, the login desktop appeared on
  both screens.  However, after logging in Ubuntu 11.04, the entire left
  screen is blank (although the mouse cursor can move over to that side).
  I would have expected the desktop to extend into the left screen and for
  both screens to be rendered correctly.  Since the Unity bar is on the
  left, this makes the system impossible to use or fix.  I had to remove
  the monitor and restart.
  
  Current Ubuntu: 11.04
  xorg version: 1:7.6+4ubuntu3
  
+ ADDENDUM:  Also, in this situation, none of the menus work (even the
+ ones visible on the right screen).  The menus work fine with one screen
+ (with the exception of some applications that do not have the
+ close/minimize/maximize buttons).
+ 
  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xorg 1:7.6+4ubuntu3
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2
  Uname: Linux 2.6.38-8-generic-pae i686
  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 Kernel Module  270.41.06  Mon Apr 18 14:54:25 PDT 2011
-  GCC version:  gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4)
+  NVRM version: NVIDIA UNIX x86 Kernel Module  270.41.06  Mon Apr 18 14:54:25 PDT 2011
+  GCC version:  gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4)
  Architecture: i386
  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 29 11:07:37 2011
  DistUpgraded: Log time: 2011-04-28 22:20:57.088255
  DistroCodename: natty
  DistroVariant: ubuntu
  GraphicsCard:
-  nVidia Corporation G84M [Quadro NVS 140M] [10de:0429] (rev a1) (prog-if 00 [VGA controller])
-    Subsystem: Lenovo ThinkPad T61 [17aa:20d8]
+  nVidia Corporation G84M [Quadro NVS 140M] [10de:0429] (rev a1) (prog-if 00 [VGA controller])
+    Subsystem: Lenovo ThinkPad T61 [17aa:20d8]
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
  JockeyStatus:
-  xorg:nvidia_173 - NVIDIA accelerated graphics driver (Proprietary, Disabled, Not in use)
-  xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, Not in use)
+  xorg:nvidia_173 - NVIDIA accelerated graphics driver (Proprietary, Disabled, Not in use)
+  xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, Not in use)
  MachineType: LENOVO 6459CTO
  PccardctlIdent:
-  Socket 0:
-    no product info available
+  Socket 0:
+    no product info available
  PccardctlStatus:
-  Socket 0:
-    no card
+  Socket 0:
+    no card
  ProcEnviron:
-  LANGUAGE=en_US:en
-  LANG=en_US.utf8
-  SHELL=/bin/bash
+  LANGUAGE=en_US:en
+  LANG=en_US.utf8
+  SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic-pae root=UUID=0fbbdaa0-68e9-4aef-b4a8-dc671a3f61df ro quiet splash vt.handoff=7
  Renderer: Unknown
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to natty on 2011-04-29 (0 days ago)
  dmi.bios.date: 06/06/2008
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7LETB9WW (2.19 )
  dmi.board.name: 6459CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7LETB9WW(2.19):bd06/06/2008:svnLENOVO:pn6459CTO:pvrThinkPadT61:rvnLENOVO:rn6459CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 6459CTO
  dmi.product.version: ThinkPad T61
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
  version.libdrm2: libdrm2 2.4.23-1ubuntu6
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

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https://bugs.launchpad.net/bugs/773387

Title:
  Left monitor displays blank screen in Unity


References