‎GDM/KDM users not displaying in list on Sid

["Vít Pelčák" <v.pelcak@gmail.com>]

OK. I solved it.
In case anyonwe is interested

In /etc/kde3/kdm/kdmrc

there is line
HiddenUsers=.....

So, delete user you don't want to hide. I have absolutelly no idea how
did users got there, but fortunatelly I found it and fixed it.

I hope it helps someone.

Regards
Vit Pelcak