Public bug reported:
Lenovo T500 with displayport has a 1920x1200 monitor attached, I use the
displayport in a similar way to a docking station in that I attach the
monitor with a displayport to dvi cable, and then expect to be able to
switch off the laptops internal display, only leaving the external
monitor working.
Screen detection works fine, mirrored screen works fine, but disabling
the internal display and activating the external display just leads to
the screen going black until the timeout has been reached, whereupon it
reverts to its previous setting.
This is a fully updated oneiric install
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-control-center 1:3.1.4-0ubuntu5
ProcVersionSignature: Ubuntu 3.0.0-8.11-generic 3.0.1
Uname: Linux 3.0.0-8-generic x86_64
Architecture: amd64
Date: Thu Aug 18 10:35:59 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1)
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnome-control-center (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug oneiric running-unity
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https://bugs.launchpad.net/bugs/828623
Title:
gnome control centre does not allow you to disable the laptop screen
while leaving an external connected screen working
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