I tested the package on stretch with the original displaylink binary from the DisplayLink Ubuntu driver. With some modifications to xorg.conf I can successfully use my additional monitors.
Edvipp seems to have an incompatibility with the current version of libedvi. Everything seems to work, except the virtual screen stays black. I did get a "snapshot" view of a single window once - however it seems the update of the screen contents does not work. But as it works with the displaylink binary I guess this is a bug in evdipp.
