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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

** Changed in: xorg (Ubuntu)
       Status: Incomplete => Triaged

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https://bugs.launchpad.net/bugs/1313170

Title:
  systemsettings > Display Configuration shows bogus monitor

Status in xorg package in Ubuntu:
  Triaged

Bug description:
  Starting from Kubuntu 14.04, when I open systemsettings > Monitor > Display Configuration, I see, additionally to my built-in monitor on my laptop (Samsung RF511 - monitor displayed as "Seiko Epson Corporation"...) an additional screen named "VGA-1-2" - which is enabled.
  This "monitor" is detected despite it does not exist. I discovered that because some apps I started did not appear on screen, and the mouse cursor somehow "vanished" behind the right screen edge, until I found out that they were placed on that second screen - I could "drag" the windows per Alt+LeftClick blindly from somewhere in the right to my actual monitor.

  a screnshot of systemsettings is attached.
  Then I attached a *real* second monitor to my laptop - systemsettings detects it correctly and expands the screen - but now tells me that I have *three* monitors...

  This is really a regression to 13.10, and as the monitor is detected
  *and* enabled by default, it is not really good to work with, as
  windows are "vanishing" somwehere.

  I can reproduce this behaviour with a Kubuntu live ISO on my system. So it is NOT my misconfiguration ;-)
  I before had Kubuntu 13.10 with KDE 4.12.5, running well without this bug.
  I am using a laptop with optimus graphics: intel/nvidia card, corresponding lspci lines:

  00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
  01:00.0 3D controller: NVIDIA Corporation GF108M [GeForce GT 540M] (rev a1)

  What else (log files etc) do you need from me to help resolve this
  bug?

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

  ApportVersion: 2.17.2-0ubuntu1.5
  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
  DistUpgraded: 2015-05-21 14:12:51,319 DEBUG enabling apt cron job
  DistroCodename: vivid
  DistroRelease: Ubuntu 15.04
  DistroVariant: ubuntu
  DkmsStatus:
   vboxhost, 4.3.30, 3.19.0-26-generic, x86_64: installed
   vboxhost, 4.3.30, 3.19.0-28-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Samsung Electronics Co Ltd Device [144d:c0a5]
  InstallationDate: Installed on 2015-02-25 (213 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. RF511/RF411/RF711
  Package: xorg 1:7.7+7ubuntu4
  PackageArchitecture: amd64
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-28-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
  Tags:  vivid ubuntu compiz-0.9
  Uname: Linux 3.19.0-28-generic x86_64
  UpgradeStatus: Upgraded to vivid on 2015-05-21 (128 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 04/26/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 10HX.M034.20110426.SSH
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: RF511/RF411/RF711
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: 10HX
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr10HX.M034.20110426.SSH:bd04/26/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pnRF511/RF411/RF711:pvr10HX:rvnSAMSUNGELECTRONICSCO.,LTD.:rnRF511/RF411/RF711:rvr10HX:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
  dmi.product.name: RF511/RF411/RF711
  dmi.product.version: 10HX
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
  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 10.5.9-2ubuntu1~vivid2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.9-2ubuntu1~vivid2
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3.1
  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~exp1ubuntu2.2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  xserver.bootTime: Tue Sep 22 11:36:07 2015
  xserver.configfile: default
  xserver.errors:
   Failed to load module "nvidia" (module does not exist, 0)
   Failed to load module "nvidia" (module does not exist, 0)
   NOUVEAU(G0): [XvMC] Failed to initialize extension.
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               13642
   vendor                                     SEC
  xserver.version: 2:1.17.1-0ubuntu3

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