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. ** Bug watch added: github.com/DisplayLink/evdi/issues #181 https://github.com/DisplayLink/evdi/issues/181 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1875015 Title: Ubuntu 20.04 and Displaylink is extremely slow To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1875015/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
