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[bugbot <569558@xxxxxxxxxxxxxxxxxx>]

** Description changed:

  Binary package hint: xorg
  
  I have two desktop users.  After upgrading to the Lucid Release
  Candidate, switching between these users sometimes results in the 2nd
  user's desktop to always show a blank screen.  When this occurs, I can
  switch back to the original user using CTRL + ALT + F8/9, but the 2nd
  user's screen is always blank.  If I log out of the 1st user, the 2nd
  user is still shown as logged in but if I try to resume their session, I
  just get the blank screen.  The only way I can recover from this is to
  kill the X server of the 2nd user, which them causes their account to be
  shown as logged out, and I can log back in with a fresh desktop.  The
  problem is easily repeatable just by switching back and forth between
  users enough times.  Please let me know if you need any additional
  information and I will be happy to work through any procedure.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: xorg 1:7.5+5ubuntu1
  ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-21-generic i686
  Architecture: i386
  Date: Sat Apr 24 16:50:46 2010
  DkmsStatus: Error: [Errno 2] No such file or directory
  MachineType: Dell Inc. Inspiron 1545
  ProcCmdLine: BOOT_IMAGE=Linux ro root=/dev/mapper/vg0-root
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: xorg
  Symptom: display
  dmi.bios.date: 12/07/2009
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A14
  dmi.board.name: 0G848F
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA14:bd12/07/2009:svnDellInc.:pnInspiron1545:pvr:rvnDellInc.:rn0G848F:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Inspiron 1545
  dmi.sys.vendor: Dell Inc.
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       i686
   kernel:             2.6.32-21-generic
+ 
+ [lspci]
+ 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
+     	Subsystem: Dell Device [1028:02aa]

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https://bugs.launchpad.net/bugs/569558

Title:
  Blank screen when switching desktop users