Ubuntu
xserver-xorg-video-amdgpu package

  1. Bug #1875015
  2. Comment #12

Comment 12 for bug 1875015

Revision history for this message
Stefan Fleischmann (sfleischmann) wrote : Re: Ubuntu 20.04 and Displaylink is extremely slow

Looks like this upstream bug report https://github.com/DisplayLink/evdi/issues/181

Seems to be triggered by disabling the laptop display. Two possible workarounds:

a) keep laptop display enabled

b) disable compositor (in my case with Xfce, settings -> window manager tweaks -> compositor -> untick enable box

Instead of posting more here please make sure to bother DisplayLink so that they fix this and release another update https://support.displaylink.com/, and/or provide more info on the GitHub issue linked above.