Same here, Ubuntu 16.04.4. If I close the lid to put my DELL E6230 into sleep, upon opening the lid and bringing it out of sleep, it says 'Switch to greeter' message, same as OP.
Last system updates I actioned was installing security updates for the Wayland Compositor (Binary utilities & dev files). It also installed updates for Avahi (client library, common data files, common library & GObject library). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1733557 Title: Login screen showing Authentication Failure Switch to greeter... To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1733557/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
