Another workaround is to switch your primary display from laptop screen to external monitor/TV by moving laptop to the right in display settings, since left screen is always default in Unity. When you do that, you can turn off the laptop screen http://i.imgur.com/ZD8YE.png
-- 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/766490 Title: [Natty-Beta2] Turning off laptop monitor turn off both monitors (laptop and external) on Vostro 3500 Status in “gnome-control-center” package in Ubuntu: Invalid Bug description: Binary package hint: gnome-control-center Following instructions for testing external monitor on a laptop in http://testcases.qa.ubuntu.com/Hardware/GFX/ExternalPrimary the resolutions of the external monitor are not detected properly. When I try to change them, also the Laptop Screen flickers and changes sizes (with "same image" option disabled, of course). Worse is when I try to set the external monitor to be primary (by turning off the laptop screen), both screens turn off. My steps: # Plugged external monitor # Go to Monitor in the Unity launcher. # Both screens are detected. # Tried different resolutions and more or less some of them worked (there where some resolutions external monitor isn't capable of). # Selected Laptop monitor and switched off, click apply. # Both monitors turned off and had to wait for the 30 second dialog to restore the last configuration. I was hoping the laptop screen to turn off and the external monitor be the primary. Then tried the switch screen har-button in this laptop (Fn + F8) but it triggers a "super" key instead (like the win logo). Afterwards Compiz crashed (Bug #766496). [Next Actions] * Reproduce under Oneiric to verify the issue is still relevant * Reproduce under Precise to verify it still occurs in development * Collect gsd logs as per comment #10 ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: gnome-control-center 1:2.32.1-0ubuntu15 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2 Uname: Linux 2.6.38-8-generic x86_64 Architecture: amd64 Date: Tue Apr 19 16:38:56 2011 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413) ProcEnviron: LANGUAGE=es_AR:en LANG=es_AR.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/ubuntu/+source/gnome-control-center/+bug/766490/+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
