Please excuse me if this is not the appropriate place to report this. A heads-up for current versions of xorg-server: there appears to be an additional or separate issue with DisplayLink and xorg-server > 1.19.6. 1.20+ doesn't work at all. A display plugged in prevents logging in, and plugging in kills the session and drops you back to login -- at least on Arch.
https://github.com/DisplayLink/evdi/issues/133 ** Bug watch added: github.com/DisplayLink/evdi/issues #133 https://github.com/DisplayLink/evdi/issues/133 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1720133 Title: USB 3.0 displays are black on Ubuntu after x.org update to 1.18.3 or newer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1720133/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs