I've just done some further testing. The behaviour varies depending on
whether I use the displayport or vga connections.
Laptop Panel + VGA = With both on, the picture is perfect and I can move
windows from one to the other.
NO Laptop Panel, Just VGA = I am able to disable the onboard laptop
screen and just have the external monitor, however the external display
is corrupted.
Displayport connectivity behaves as described previously mentioned, i.e.
still completely blank when attempting to disable laptop screen, but
fine if both are allowed to display.
I have also verified that the same behaviour is exhibited under Fedora
16 Alpha LiveCD. Will raise upstream and Fedora Bugs.
** Also affects: gnome-control-center (Fedora)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-control-center in Ubuntu.
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
Status in GNOME Control Center:
New
Status in “gnome-control-center” package in Ubuntu:
Confirmed
Status in “gnome-control-center” package in Fedora:
New
Bug description:
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)
To manage notifications about this bug go to:
https://bugs.launchpad.net/gnome-control-center/+bug/828623/+subscriptions
--
Mailing list: https://launchpad.net/~desktop-packages
Post to : desktop-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~desktop-packages
More help : https://help.launchpad.net/ListHelp
