Comment 36 for bug 1311403

This bug is present in 16.04 with current updates, however it only started around a week ago so it was probably introduced in a recent update.

It is not a duplicate of 1311316 as the password box is still there, it just doesn't accept keyboard input.

A work-around is to start and logout from a guest session, then when returning to the login screen the password field works normally.