Displaylink driver for Ubuntu 20.04
The main reason why these drivers sucks is that it is proprietary, and display link doesn't give a flying f… about the maintenance and about Linux.
This driver is a nasty son of a **** whenever you upgrade your kernel guess what if you don't update the current driver for example if there is no ported version. Or no version without major bugs, it can appear like your hardware is broken.
https://www.synaptics.com/products/displaylink-graphics/downloads/ubuntu
https://support.displaylink.com/knowledgebase/topics/103927-troubleshooting-ubuntu
https://github.com/DisplayLink/evdi
https://gist.github.com/carestad/cbee30214e6bf6b153054d35d4cb3b18