View Full Version : [gnome] dual screens: need mirror image, not extra desktop

September 8th, 2010, 02:30 PM
I'm using an Intel chipset GMA4500 and Ubuntu 10.04 Gnome. The monitor configuration tool does not seem to have an option to make the secondary screen a mirror image of the primary screen. It works fine when I connect my TV using HDMI as a second screen, but I want it to be a mirror of the primary, because some apps like Skype will only go "full screen" on the primary display.

Does anyone know how I can achieve this?

September 8th, 2010, 04:54 PM
System -> Prefs -> Monitors -> Mirror images on both monitors

September 11th, 2010, 05:44 PM
for some reason that option al always greyed out whether the TV is connected or not.

I looked into xrandr, but it seems to conflict with the Monitor tool that gets automatically activated when I connect te TV using HDMI.

I understand that I have to "clone" my laptop screen to the TV, as a mirror assumes that the resolution and refresh rate is the same on both screens, which isn't the case.

From what I gather, the following will do a clone, but I lose my Laptop screen:

xrandr --output HDMI1 --auto

I have yet to test this to see if it conflicts with the monitor tool.