Monday, February 18, 2008

Ubuntu Gutsy Radeon Dual Head

Monday, February 18, 2008 Posted by Andre Broers ,
I have a radeon 7000 ve card with two lcd monitors with a resolution of 1024x768. To get them working in Gutsy I added the following Virtual line in the Screen section of my /etc/X11/xorg.conf:
Section "Screen"
Identifier "Default Screen"
Device "ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]"
Monitor "C384FA-M"
DefaultDepth 24
SubSection "Display"
Virtual 2048 768
Modes "1024x768" "800x600" "640x640"
EndSubSection
EndSection

After a logout / login I give the command:
xrandr --output DVI-0 --right-of VGA-0

Now the display is in dual head mode. Because the total display size of the radeon7000/ve card is smaller than the 2048x768 virtual desktop the right side of the desktop isn't refreshed. I had a work around by opening a permanent firefox browser on my right monitor.

When you put the xrandr statement in the .profile the dual head is always enabled when you log on.