Re: [xmonad] detecting multi-head and other newbie questions

Quoting Mike Linksvayer :

http://www.haskell.org/haskellwiki/Xmonad/Frequently_asked_questions#Multi_h...

ghc -e Graphics.X11.Xinerama.compiledWithXinerama

Output is True.

ghc -e "Graphics.X11.openDisplay [] >>= Graphics.X11.Xinerama.getScreenInfo"

Output is

[Rectangle {rect_x = 0, rect_y = 0, rect_width = 1280, rect_height = 800}]

Sounds like you should check into xrandr. Probably the right invocation will turn your other monitor on. ~d