Public bug reported:
I was testing an external monitor on a laptop with Ubuntu 11.04, my
display corrupts when I plug in the external monitor.
This situation is:
1. Zebra lines appear (see attachment).
2. The content is not properly displayed (see attachment).
3. When dragging a window move around that area will get it redraw, making it
look fine, but the problem still exist.
4. Using a different resolution setting does not help.
Test case:
1. Open the display configuration tool.
2. Plug in the external monitor.
3. Move a window around.
4. Switch to another resolution setting, and move a window around.
Attached screenshot was captured from the laptop during this happens.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.18.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35
Uname: Linux 3.2.0-37-generic i686
.tmp.unity.support.test.1:
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: i386
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDmesg: [ 24.616411] eth0: no IPv6 routers present
Date: Tue Feb 12 11:56:26 2013
DistUpgraded: 2012-07-11 15:05:43,675 DEBUG enabling apt cron job
DistroCodename: precise
DistroVariant: ubuntu
GraphicsCard:
VMware SVGA II Adapter [15ad:0405] (prog-if 00 [VGA controller])
Subsystem: VMware SVGA II Adapter [15ad:0405]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
MachineType: VMware, Inc. VMware Virtual Platform
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-37-generic
root=UUID=33be0bd3-75c3-41ce-aaec-06863a5c5cb9 ro quiet splash
SourcePackage: unity
UpgradeStatus: Upgraded to precise on 2012-07-11 (215 days ago)
dmi.bios.date: 09/18/2009
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.name: 440BX Desktop Reference Platform
dmi.board.vendor: Intel Corporation
dmi.board.version: None
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd09/18/2009:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
dmi.product.name: VMware Virtual Platform
dmi.product.version: None
dmi.sys.vendor: VMware, Inc.
version.compiz: compiz 1:0.9.7.12-0ubuntu1
version.libdrm2: libdrm2 2.4.39-0ubuntu0.1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-0ubuntu0.3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-0ubuntu0.3
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.11
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:0.0.16+git20111201+b5534a1-1build2
** Affects: unity (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise running-unity screencast testcase ubuntu
** Attachment added: "Screenshot"
https://bugs.launchpad.net/bugs/1122695/+attachment/3524792/+files/problem1.png
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https://bugs.launchpad.net/bugs/1122695
Title:
Connecting an external monitor cause display corruption on my laptop.
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