[LightDM] Lightdm and fingerprint-gui login without exact username

[Alexey Prokopchuk]

Greetings!

My English is not very good, excuse me if I said something wrong.

Trying to use lightdm with fingerprint-gui. All seems working fine when
username is specified directly before using fingerprint sensor instead
of enter password. But if I try to setup lightdm with
greeter-hide-users=true and greeter-show-manual-login=true, to
fingerprint-gui determined username from supplied fingerprint, start
session doesn't work after successful fingerprint identification. Only
possibility to get successful login is manual select password box in
login window before using fingerprint sensor.

If I say in short:
Now I can start session with fingerprint-gui when directly specify
username, or if I make password box active before using fingerprint sensor.

I would like to use fingerprint sensor without any keyboard input or
mouse click, only sweep finger for perform login.

With gdm I can perform login without any keyboard/mouse action, and when
fingerprint recognized, username box automatically fills with detected
username, then password box becomes active, and after all correct
session starts.

It is possible to use lightdm same way as gdm?

With best regards, Alexey Prokopchuk (AP8686-RIPE)