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[crashsystems <crashsystems@xxxxxxxxx>]

Public bug reported:

Binary package hint: xorg

When I have a second monitor attached, and turn off that monitor in
preferences, everything starts drawing on the screen _very_ slowly
(though X is not frozen). I SSHd into my laptop and ran top to see if
any processes were consuming lots of CPU power, but everything looked
normal there. If I open up TTY1, the performance in X stays crappy, but
if I open up TTY1 _and_ log in there, the performance returns to normal.

ProblemType: Bug
Architecture: amd64
Date: Wed Oct 28 13:36:21 2009
DistroRelease: Ubuntu 9.10
MachineType: Dell Inc. Inspiron 1545
NonfreeKernelModules: wl
Package: xorg 1:7.4+3ubuntu7
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-14-generic root=UUID=b272263a-7f0e-44fe-988d-a9385566d4a0 ro quiet splash
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu7
 libgl1-mesa-glx 7.6.0-1ubuntu4
 libdrm2 2.4.14-1ubuntu1
 xserver-xorg-video-intel 2:2.9.0-1ubuntu2
 xserver-xorg-video-ati 1:6.12.99+git20090929.7968e1fb-0ubuntu1
SourcePackage: xorg
Uname: Linux 2.6.31-14-generic x86_64
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
dmi.bios.date: 02/25/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0G848F
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd02/25/2009:svnDellInc.:pnInspiron1545:pvr:rvnDellInc.:rn0G848F:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Inspiron 1545
dmi.sys.vendor: Dell Inc.
fglrx: Not loaded
system:
 distro:             Ubuntu
 architecture:       x86_64kernel:             2.6.31-14-generic

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug

-- 
[karmic] Detaching secondary monitor causes very slow X performance
https://bugs.launchpad.net/bugs/462765
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