Comment 26 for bug 390396

It expects that chfn will ask for password, but chfn on my gentoo system never does this.
If i enable setting full name in login.defs (CHFN_RESTRICT frwh), then it asks for password (when it's not needed), and just freeze. If CHFN_RESTRICT doesn't contain 'f' (by default it doesn't), then full name must be changed using something like sudo chfn -f "New Name" login.

I think that changing full name in email settings and in passwd are different tasks. Why not change e-mail settings when chfn failed? I don't understand, why this commit is done: https://projects.kde.org/projects/kde/kde-baseapps/repository/revisions/8398bfba9d372f9c4fb3de597fbf7802e5f3a19c

Maybe the right way to do this is try to execute chfn -f
1) without password
2) using kdesu
And I think this must be done using separate button "Change system name" or something like this