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[Bryce Harrington <840974@xxxxxxxxxxxxxxxxxx>]

I think this *might* be a duplicate (or at least variant) of bug
#828623.

** Summary changed:

- configuration of external monitor on laptop causes lvds to remain black
+ configuration of external monitor on laptop with DisplayPort causes lvds to remain black

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https://bugs.launchpad.net/bugs/840974

Title:
  configuration of external monitor on laptop with DisplayPort causes
  lvds to remain black

Status in “gnome-control-center” package in Ubuntu:
  Confirmed
Status in “xorg-server” package in Ubuntu:
  Incomplete

Bug description:
  During test of Oneiric Beta 1 on my HP-G62 laptop testcase:
  http://testcases.qa.ubuntu.com/Hardware/GFX/ExternalPrimary I have
  this problem on configuration of external attached monitor:

  After powering on my laptop with an external monitor attached, when I
  unclick the duplicate check box and work only with the external
  monitor,  when you try to turn the laptop monitor on again it just
  remains black and only the external one works, can't get it back
  working, it works only if you check the duplicate check box again, but
  you can't switch off the external monitor and work with the laptop one
  if the external one is attached.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: gnome-control-center 1:3.1.5-0ubuntu4
  ProcVersionSignature: Ubuntu 3.0.0-9.15-generic 3.0.3
  Uname: Linux 3.0.0-9-generic x86_64
  Architecture: amd64
  Date: Sun Sep  4 14:40:31 2011
  ExecutablePath: /usr/bin/gnome-control-center
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=it_IT.UTF-8
   SHELL=/bin/bash
  SourcePackage: gnome-control-center
  UpgradeStatus: No upgrade log present (probably fresh install)

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