I have two screens on my computer, but they all show the same image (i.e I can't activate dual screen).
I saw on some blogs that I need to configure
xrandr for this, but it fails to do so. Here is the output
sam@BARDT071:~$ xrandr xrandr: Failed to get size of gamma for output default Screen 0: minimum 640 x 480, current 1600 x 1200, maximum 1600 x 1200 default connected 1600x1200+0+0 0mm x 0mm 1600x1200 0.0* 1280x1024 0.0 1280x960 0.0 1024x768 0.0 800x600 0.0 640x480 0.0
It seems that only one screen is visible to my Debian system, even though I have two screens displaying something. Any pointers would be appreciated!
EDIT: I run xfce4, and going to
Start -> Settings -> Display shows only one screen.