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[Bug 1453889] Re: Dual Monitor Setup is Mirroring Instead of Spanning

 

I have installed Trusty Tahr and switched from using displayPort only to
using displayPort and DVI.  That seems to have resolved the issue.

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https://bugs.launchpad.net/bugs/1453889

Title:
  Dual Monitor Setup is Mirroring Instead of Spanning

Status in xserver-xorg-video-ati package in Ubuntu:
  New

Bug description:
  I was running Utopic and when I came in this morning my monitors
  wouldn't come out of power-save mode.  I logged in remotely and
  rebooted the system.  The monitors now work but they are both
  displaying the same content (mirroring) while they were spanning
  before.  I have now upgraded to vivid but it hasn't resolved the
  issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
  ProcVersionSignature: Ubuntu 3.13.0-46.79-generic 3.13.11-ckt15
  Uname: Linux 3.13.0-46-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  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
  Date: Mon May 11 10:08:13 2015
  DistUpgraded: 2015-05-11 09:39:26,994 DEBUG enabling apt cron job
  DistroCodename: vivid
  DistroVariant: ubuntu
  DkmsStatus: virtualbox, 4.3.26: added
  ExtraDebuggingInterest: Yes, including running git bisection searches
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] Oland [Radeon HD 8570 / R7 240 OEM] [1002:6611] (prog-if 00 [VGA controller])
     Subsystem: Dell Radeon R5 240 OEM [1028:210b]
  InstallationDate: Installed on 2014-12-11 (150 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Dell Inc. OptiPlex 7020
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-46-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  SourcePackage: xserver-xorg-video-ati
  UpgradeStatus: Upgraded to vivid on 2015-05-11 (0 days ago)
  dmi.bios.date: 08/23/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A01
  dmi.board.name: 08WKV3
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 6
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA01:bd08/23/2014:svnDellInc.:pnOptiPlex7020:pvr01:rvnDellInc.:rn08WKV3:rvrA00:cvnDellInc.:ct6:cvr:
  dmi.product.name: OptiPlex 7020
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  xserver.bootTime: Mon May 11 09:40:25 2015
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        Power Button         KEYBOARD, id 7
   input        Logitech USB Optical Mouse MOUSE, id 8
   input        Dell Dell Smart Card Reader Keyboard KEYBOARD, id 9
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.17.1-0ubuntu3
  xserver.video_driver: radeon

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References