I occasionally see this on two separate 18.04 installations using Xorg sessions. The time to unlock varies from a couple of seconds to several minutes. Everything other than unlocking the screen feels to work at a normal speed.
I can reliably reproduce this issue (cause screen unlocking to take several minutes) by reading files from my Android 8 phone over USB (phone in "Use USB to transfer files" mode; Ubuntu directory /run/user/1000/gvfs/mtp:host...). (Probably not related, but this file transfer seems extremely slow.) See also: https://askubuntu.com/questions/1038723 (5 people experiencing this issue; no solution) Possibly related: https://askubuntu.com/questions/993984 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1774188 Title: Unlocking the screen takes 5 seconds in Xorg sessions (not so much in Wayland sessions) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1774188/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs