Make displaylink D3100 Dell docking station work with Dell XPS15 running ubuntu 18.04

DisplayLink-DellXPS15-Ubuntu18.sh

https://github.com/avianey/displaylink-debian

To avoid DisplayLinkManager process consume to much CPU :

as a root user create a file 21-displaylink.conf under:

/usr/share/X11/xorg.conf.d/

with the following content for Ubuntu: 

Section "Device"
  Identifier "DisplayLink"
  Driver "modesetting"
  Option "PageFlip" "false"
EndSection 

dd evdi to /etc/modules to always load it when the system starts:

# echo evdi >> /etc/modules

Indicate how many DRM devices should be created initially by evdi. This number should generally be equal to the number of screens you are connecting to DisplayLink devices. For example, for two extra screens use the following:

# echo "options evdi initial_device_count=2" > /etc/modprobe.d/evdi.conf