Thank you A.Sokolowski (and Dragonmaster Lou)!
My video card only has a single DVI port, and I use a splitter to plug
in my monitors using two DVI cables. Therefore I modified your
suggestion slightly.
I put the following at the bottom of my /etc/profile:
xrandr --output DVI-0 --mode 1280x1024
xrandr --output DVI-1 --right-of DVI-0 --mode 1280x1024
I modified my xorg.conf like so:
Section "Screen"
Identifier "Default Screen"
Device "Failsafe Device"
Monitor "Failsafe Monitor"
Defaultdepth 24
SubSection "Display"
Depth 24
Virtual 2560 1024
Modes "[EMAIL PROTECTED]" "[EMAIL PROTECTED]"
EndSubSection
EndSection
After rebooting my machine dual monitors work perfectly.
A couple of notes:
* I had to reboot to get the new settings to take effect. Pressing
Ctrl+Alt+Backspace doesn't do it.
* The login screen still shows up on both monitors (it's "mirrored")
which could lead you to believe that the settings haven't taken effect.
However upon logging in I have one large desktop spread across both
monitors with the Ubuntu Panel on the right hand screen and my desktop
icons on the left. It doesn't parse /etc/profile until you log in.
* Modifying settings in "Screens and Graphics" takes me back to square
one, with my monitors mirrored. To get my dual monitor configuration
back I have to edit xorg.conf and reboot.
--
Dual Monitor Problems
https://bugs.launchpad.net/bugs/44708
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