I have same problem that other, after update gnome and suspend it, when i try to login in my session the input password doesn’t works.
So, i want ask you, when will be solved this problem with ligthdm?
No, i won’t install GDM for solve this error because isn’t mine, GDM is very ugly, haven’t custom background wall papers.
This issue has a solution now: https://forum.antergos.com/topic/5180/login-issue-with-lightdm-webkit-greeter-not-accepting-user-input
– Michael Tunnell