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On unplugging the second monitor the remaining monitor flashes and seems
to half update (half the launcher is shown with a white background) and
the screen will not update further. Switching to VT (ctrl alt F1) and
back refreshes the screen, showing full launcher and wallpaper, but it
will not update further. I can't see any errors in the logs. unity-
system-compositor process is still running.
I am running with the workaround for bug #1222602
(MESA_GL_VERSION_OVERRIDE=1.4).
The failure is consistent every time.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: unity-system-compositor 0.0.1+13.10.20130926.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-9.16-generic 3.11.2
Uname: Linux 3.11.0-9-generic i686
ApportVersion: 2.12.5-0ubuntu1
Architecture: i386
Date: Mon Sep 30 11:07:53 2013
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev
09) (prog-if 00 [VGA controller])
Subsystem: CLEVO/KAPOK Computer Device [1558:0240]
InstallationDate: Installed on 2012-08-01 (424 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120730.1)
MarkForUpload: True
SourcePackage: unity-system-compositor
UpgradeStatus: No upgrade log present (probably fresh install)
version.libdrm: libdrm2 2.4.46-1
version.lightdm: lightdm 1.7.17-0ubuntu1
version.mesa: libegl1-mesa-dev N/A
** Affects: mir
Importance: Medium
Status: Confirmed
** Affects: unity-system-compositor
Importance: Medium
Status: Confirmed
** Affects: xorg-server (Ubuntu)
Importance: Medium
Status: Confirmed
** Tags: apport-bug i386 saucy xmir
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[xmir] Screen stops updating after unplugging second monitor
https://bugs.launchpad.net/bugs/1233079
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