How to start with using my DisplayLink screen
 

Im running Debian 7 with the latest kernel (3.12-1-amd64) and i have an Asus MB168+ DisplayLink screen.

I'm unable to find some easy tutorial how to setup this display. There is a lot of old information on the web about setting it up, but yeah...

Can someone explain how i can set this up? I've read some information about you can only run one graphics adapter (so only the displaylink screen or your normal screen), but i've seen several Ubuntu posts that say they have the "green screen of success". What does this mean? Ubuntu is based on Debian so can i get this working?