Sddm don't allow to input username manually in F23

[Patrick O'Callaghan]

On Mon, 2015-11-09 at 10:26 +0800, Zhanghui wrote:
>     I have just upgraded one of my computer from F22 to F23. After
> reboot, I can't login any more.
> My computer has no local user, so the login manager SDDM asks for
> password directly. I can't
> input my username.

SDDM is part of KDE, so it might be better to ask on the Fedora KDE
list: https://admin.fedoraproject.org/mailman/listinfo/kde

poc