- NOTE: I had to reboot after doing this to eliminate display artifacts.
- Also, the dock doesn't appear to support using both of the displayport ports simultaneously :'(
- And MST (https://en.wikipedia.org/wiki/DisplayPort#Multi-Stream_Transport_(MST) ) doesn't seem to work on this dock, so you can't daisy chain monitors.
- download driver from http://www.displaylink.com/downloads/ubuntu
- unpack
unzip DisplayLink\ USB\ Graphics\ Software\ for\ Ubuntu\ 4.4.zip
- install dependencies
sudo apt install dkms
- install displaylink
cd DisplayLink\ USB\ Graphics\ Software\ for\ Ubuntu\ 4.4
# set script executable
chmod +x ./displaylink-driver-4.4.24.run
# run it
sudo ./displaylink-driver-4.4.24.run
Main info page for the device: https://www.dell.com/support/article/us/en/04/sln308795/dell-universal-dock-d6000-technical-specifications-and-usage-guide?lang=en
Ah yeah, I think the hardware only supports 2 simultaneous outputs :( I never got all 3 to work at the same time.