2 pixels shift on the second screen (extended desktop)

Bug #1280690 reported by Kevin C. on 2014-02-15
14
This bug affects 2 people
Affects Status Importance Assigned to Milestone
xserver-xorg-video-ati (Ubuntu)
Low
Unassigned

Bug Description

I have 2 screens and there is a 2 pixels shift to the right on the display on my second screen (see attached picture). I encounter this issue with Ubuntu 13.10 and 14.04.

---
.tmp.unity.support.test.0:

ApportVersion: 2.13.2-0ubuntu4
Architecture: i386
CasperVersion: 1.337
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
DistUpgraded: Fresh install
DistroCodename: trusty
DistroRelease: Ubuntu 14.04
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] RV710/M92 [Mobility Radeon HD 4330/4350/4550] [1002:9552] (prog-if 00 [VGA controller])
   Subsystem: Samsung Electronics Co Ltd Device [144d:c050]
LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20140215)
MachineType: SAMSUNG ELECTRONICS CO., LTD. R520/R522/R620
Package: xorg 1:7.7+1ubuntu8
PackageArchitecture: i386
ProcKernelCmdLine: initrd=/casper/initrd.lz file=/cdrom/preseed/username.seed boot=casper quiet splash -- BOOT_IMAGE=/casper/vmlinuz
ProcVersionSignature: Ubuntu 3.13.0-8.28-generic 3.13.2
Tags: trusty ubuntu reproducible compiz-0.9
Uname: Linux 3.13.0-8-generic i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 01/05/2010
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 07LL.M027.20100105.Jay
dmi.board.name: R520/R522/R620
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr07LL.M027.20100105.Jay:bd01/05/2010:svnSAMSUNGELECTRONICSCO.,LTD.:pnR520/R522/R620:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnR520/R522/R620:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: R520/R522/R620
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu4
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.0.1-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.0.1-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Sat Feb 15 23:57:01 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.15.0-1ubuntu6
xserver.video_driver: radeon

Kevin C. (kedoc) wrote :
tags: added: apport-collected reproducible
description: updated

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Kevin C. (kedoc) wrote : BootLog.txt

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Kevin C. (kedoc) wrote : DpkgLog.txt

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Kevin C. (kedoc) wrote : Lspci.txt

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Kevin C. (kedoc) wrote : Lsusb.txt

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Kevin C. (kedoc) wrote : UdevDb.txt

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Kevin C. (kedoc) wrote : UdevLog.txt

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Kevin C. (kedoc) wrote : XorgLog.txt

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Kevin C. (kedoc) wrote : Xrandr.txt

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Timo Aaltonen (tjaalton) on 2014-04-06
affects: xorg (Ubuntu) → xserver-xorg-video-ati (Ubuntu)
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in xserver-xorg-video-ati (Ubuntu):
status: New → Confirmed
Markus Ilmola (markus-ilmola) wrote :

This bug seems to be same as:

https://bugs.freedesktop.org/show_bug.cgi?id=63900

Workaround:

Place the external monitor on the left side and laptop monitor on the right.
This way the laptop monitor with "invalid" width won't miss align the picture on the external monitor.

Kevin C., could you please provide the full computer model as noted on the sticker of the computer itself (not from the Bug Description)?

description: updated
description: updated
Changed in xserver-xorg-video-ati (Ubuntu):
importance: Undecided → Low
status: Confirmed → Incomplete
tags: added: saucy
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