The installer script only recognises Ubuntu. In other distros, you need to install an upstart init script or a systemd service file yourself (or modify the installer script to do it for you).
See
http://displaylink.org/forum/showpos...&postcount=199.
Also see
http://displaylink.org/forum/showthread.php?t=63994 if you need to use systemd.
Thanks,
Michal