I'm pretty sure because of the way PAM works and consequently the way thinkfinger is written, you'll have to select a username first. Fingerprint-only isn't something you'd do at the KDE level, you'd have to make changes to PAM.
I'd just like to click a user in KDM and swipe my finger for auth, and then get swipe support for KDE su. Those two things would accommodate the vast majority of my use.
I'm pretty sure because of the way PAM works and consequently the way thinkfinger is written, you'll have to select a username first. Fingerprint-only isn't something you'd do at the KDE level, you'd have to make changes to PAM.
I'd just like to click a user in KDM and swipe my finger for auth, and then get swipe support for KDE su. Those two things would accommodate the vast majority of my use.