Ubuntu
xserver-xorg-video-amdgpu package

  1. Bug #1875015
  2. Comment #10

Comment 10 for bug 1875015

Revision history for this message
Mike Bartlet (bartlet7827) wrote : Re: Ubuntu 20.04 and Displaylink is extremely slow

Upgraded from ubuntu 18.04 to 20.04 today and was happy that DisplayLink finally started to work. Well, that is until I realised how totally unusable it was! Exactly the same experience as the other posters. I'm using an Acer Aspire V5 with a DisplayLink D3100 device and dual monitors.

Then I noticed something very interesting. If I also plugged in a monitor to the VGA output, everything works perfectly. As soon as I unplug the VGA monitor, it is unusable again. While not ideal, this is a reasonable work-around for me until the bug is fixed.

The down-side of this workaround for me is that the VGA output is plugged into a VGA input of one of my monitors. So although ubuntu thinks I have 3 monitors, there are only two. This means if I launch an app and it goes to the VGA output, I can't see it. It takes a bit of fiddling around to drag it to the DisplayLink output.

Looking forward to this bug being fixed.