Originally Posted by netllama
Are you reporting that neither of these two options in your xorg.conf are working?
#Option "TwinViewOrientation" "CRT-1 RightOf DFP-0"
Option "TwinViewOrientation" "DFP-0 LeftOf CRT-1"
this works, but CRT is always the primary monitor, which e.g. gdm uses.
i just can manually configure gdm to use the display "1" (instead of the 0), so it displays the login at the DFP monitor.
but this isn't the real problem. e.g. as described down below, the gnome desktop has to be switched manually and other programs will firstly start on the crt monitor instead of the dfp monitor.