Is this a new behavior? Did you see this on quantal? (Or, can you try
booting into a quantal livecd image, set up the external monitor, and
see if it happens then as well.) If you didn't see it in quantal, did
it occur as soon as you upgraded or installed, or did it occur only
later?
I notice you have virtualbox installed, but I am gathering you're seeing
this behavior unrelated to any VM sessions?
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1085338
Title:
One pixel column that belongs in one monitor shows up in the other
instead
Status in “xserver-xorg-video-ati” package in Ubuntu:
Incomplete
Bug description:
I have configured the laptop screen in the left and a external monitor
in the right. On the left most part of the monitor, I can see 1 column
of pixels that belong to the content that is in the right most part of
the laptop.
Strangely, it does not show up when I try to do a screenshot, but is
quite evident when watching a fullscreen movie in the monitor, for
example.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xorg 1:7.7+1ubuntu4
ProcVersionSignature: Ubuntu 3.7.0-4.12-generic 3.7.0-rc7
Uname: Linux 3.7.0-4-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.6.3-0ubuntu2
Architecture: amd64
CompizPlugins:
[core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Sat Dec 1 12:42:13 2012
DistUpgraded: 2012-11-25 13:52:25,604 DEBUG enabling apt cron job
DistroCodename: raring
DistroVariant: ubuntu
DkmsStatus:
virtualbox, 4.1.22, 3.7.0-3-generic, x86_64: installed
virtualbox, 4.1.22, 3.7.0-4-generic, x86_64: installed
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes
GraphicsCard:
Advanced Micro Devices [AMD] nee ATI Wrestler [Radeon HD 6310] [1002:9802]
(prog-if 00 [VGA controller])
Subsystem: Sony Corporation Device [104d:9082]
InstallationDate: Installed on 2012-11-25 (6 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120627)
MachineType: Sony Corporation VPCYB16KG
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_SG:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_SG.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.7.0-4-generic
root=UUID=c5e8db97-be79-41c7-a2d8-be5fa7b409a8 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to raring on 2012-11-25 (5 days ago)
dmi.bios.date: 12/22/2010
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: R0160Z7
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnInsydeCorp.:bvrR0160Z7:bd12/22/2010:svnSonyCorporation:pnVPCYB16KG:pvrC900K9AU:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCYB16KG
dmi.product.version: C900K9AU
dmi.sys.vendor: Sony Corporation
version.compiz: compiz 1:0.9.8.4+bzr3412-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.40-1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.1-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.1-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu8
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.0.0-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.14-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.4-0ubuntu1
xserver.bootTime: Fri Nov 30 13:03:50 2012
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.13.0-0ubuntu8
xserver.video_driver: radeon
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