I am suffering from this problem as well (2020 Dell XPS 13", Ubuntu LTS 20.04), even after applying the fix at https://www.displaylink.org/forum/showthread.php?t=67148. HOWEVER - I have found that if I mirror my displays (laptop built-in + external HP2511X vis DVI), the lag disappears. This is true even when connected via an external USB 3.0 hub, so at least I can use my external mouse/KB at the same time as enjoying the larger desktop.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in 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 _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
