Dual-headed X11
per user The native screen-size detection doesn’t work for dual-head installations. To let X11 handle both screens as one large display, find the section Screen in the /etc/X11/xorg.conf and add the following lines: This is for two 1280×1024 displays side-by-side (1280+1280 = 2560). Now you can use xrandr to set displays. Shows all available displays.… Read More »