Patch has little to no effect on my laptop. It's especially noticeable when playing video.
Dell Inspiron 13 5368 2-in-1 Laptop Processor: Intel(R) Core(TM) i3-6100U CPU @ 2.30GHz Memory: 12125MB (4913MB used) Operating System: Ubuntu 20.04.1 LTS Kernel: Linux 5.4.0-48-generic (x86_64) Version: #52-Ubuntu SMP Thu Sep 10 10:58:49 UTC 2020 C Library: GNU C Library / (Ubuntu GLIBC 2.31-0ubuntu9.1) 2.31 Date/Time: Sun 04 Oct 2020 12:24:04 PM EDT -- 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