And even the command-line tool is far simpler than fiddling with xorg.conf. When I plug my laptop into its docking station, I run a little script to switch over

And even the command-line tool is far simpler than fiddling with xorg.conf. When I plug my laptop into its docking station, I run a little script to switch over to my two external monitors in portrait mode: #!/bin/sh xrandr --output LVDS1 --off xrandr --output VGA1 --mode 1920x1200 --rotate left xrandr --output HDMI1 --mode 1920x1200 --left-of VGA1 --rotate left I could probably automate it, but this is easy enough that I don't care.