I have a ThinkPad Hybrid USB-C with USB-A Dock connected to a ThinkPad T14 laptop with Ubuntu 20.04 and a DELL external monitor. I had no display on my external screen until I installed the following driver: https://www.synaptics.com/products/displaylink-graphics/downloads/ubuntu. Since then, display is working (both in HDMI and DP) but response time is very slow. Any idea how to fix this?
Many thanks for your help!
