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[Bug 874241] Re: Wrong resolutions in lightdm login screen when using external monitor connected to laptop


This bug still affects in xubuntu 14.04.

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  Wrong resolutions in lightdm login screen when using external monitor
  connected to laptop

Status in “gdm-guest-session” package in Ubuntu:
Status in “gnome-settings-daemon” package in Ubuntu:
Status in “unity-greeter” package in Ubuntu:

Bug description:
  When booting with an external monitor attached, the external monitor shows a stretched-out display, which the laptop monitor shows two black bars on each side of a lesser-resolution GDM display. This problem persists after logging in and is illustrated by these pictures:
  GDM display:

  In-session display:

  It's rather common to boot with the screen connected, so the use case
  for this really is problematic as the Ubuntu splash doesn't look right
  when a workstation is started like this. I happen to be in an
  environment where everyone runs Windows and cosmetic details like this
  really undermine confidence in Ubuntu.

  This was also tested with a 11.10 nightly 3 weeks ago. I have to use
  the monitors utility every-time the system is rebooted to adjust

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
  ProcVersionSignature: Ubuntu 2.6.38-11.50-generic
  Uname: Linux 2.6.38-11-generic x86_64
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,snap,gnomecompat,grid,place,regex,move,resize,mousepoll,session,imgpng,zoom,mag,wall,animation,expo,thumbnail,workarounds,ezoom,staticswitcher,fade,scale]
  CompositorRunning: compiz
  Date: Fri Oct 14 09:40:55 2011
  DistUpgraded: Fresh install
  DistroCodename: natty
  DistroVariant: ubuntu
   dkms.conf: Error! No 'DEST_MODULE_LOCATION' directive specified.
   dkms.conf: Error! No 'PACKAGE_NAME' directive specified.
   dkms.conf: Error! No 'PACKAGE_VERSION' directive specified.
   vboxhost, 4.1.2, 2.6.38-11-generic, x86_64: built
   vboxhost, 4.1.4, 2.6.38-11-generic, x86_64: installed
  EcryptfsInUse: Yes
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:1652]
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110426)
  MachineType: ASUSTeK Computer Inc. K53E
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic root=UUID=c9a489db-ff56-4f7b-8ee8-617e5f4f00c4 ro quiet splash vt.handoff=7
  Renderer: Unknown
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/09/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: K53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: K53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrK53E.209:bd05/09/2011:svnASUSTeKComputerInc.:pnK53E:pvr1.0:rvnASUSTeKComputerInc.:rnK53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: K53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.
  version.compiz: compiz 1:0.9.4+bzr20110606-0ubuntu1~natty2
  version.ia32-libs: ia32-libs 20090808ubuntu13
  version.libdrm2: libdrm2 2.4.23-1ubuntu6
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
  version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3.1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

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