Seems some people here are using the DisplayLink driver offered by the company for USB3-based DL-devices. I ran into this bug using the udl driver, since I'm using a DL-device based on one of the older USB2 DisplayLink chipsets. Confirmed the problem in Mint 20.1 and Ubuntu 20.04.2. In Ubuntu, I also tried Wayland but couldn't get DL working there at all.
Some people here have stated that it helped running one of the screens with VGA or HDMI. Didn't help me though. -- 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/xorg-server/+bug/1875015/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
