Ubuntu
xserver-xorg-video-nouveau package

  1. Bug #1875015
  2. Comment #21

Comment 21 for bug 1875015

Revision history for this message
Michael Devine (circumjovial) wrote : Re: Ubuntu 20.04 and Displaylink is extremely slow

Same problem here, ThinkPad T490 with 20.04 with "ThinkPad Hybrid USB-C with USB-A Dock" model DUD9011D1, with DisplayLink 5.3.1 drivers. No discrete GPU, just the Intel UHD graphics "Device: Mesa Intel(R) UHD Graphics (CML GT2) (0x9b41)"

It seems display buffers are updated roughly once per second.