Multiple Monitor Support on Debian 8

I started with the graphical display tool and from there I was able to switch the primary and secondary monitor; however, to switch the right/left placement would just hang the system.

After rebooting, it was back to the good old terminal mode (So much for Linux Graphical interfaces)

xrandr worked great:

root@darkside:/home/williamk# xrandr --output DVI-D-1 --right-of DVI-I-1

A quick flicker and positions were switched.