Displaylink has NO LINUX Support

[jkhanlar]

Originally Posted by display-damiano

It says Linux supported but the only reasonable result is a green monitor.

https://www.kernel.org/doc/Documentation/fb/udlfb.txt

If the DisplayLink device is successful, it will paint a "green screen" which means that from a hardware and fbdev software perspective, everything is good.

See http://plugable.com/2011/12/23/usb-graphics-and-linux/ for some config deets to get xorg to work. I haven't tried Wayland yet.