I 've got this bug after "apt-get dist-upgrade" on my system too.
System before bug: Ubuntu 16.04.1 LTS Kernel 4.4.0-45-generic #66-Ubuntu SMP After upgrade: Ubuntu 16.04.5 LTS Kernel 4.4.0-131-generic #157-Ubuntu SMP User A logged in User A lock screen User B logged in User B logged out User A try to login. Message: Authentication failure Swith to Greeter If click Swith to Greeter it witll allow you to login and then it is back. -- 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/unity/+bug/1733557/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
