fprint authentication dialog stays displayed a too short time
STEPS TO REPRODUCE
- press "enter" on the login screen or the lock screen
- fprint dialog invites you to swipe your finger
OBSERVED RESULT
During swiping my finger, the fprint dialog disappears. I can't see the result of my swiping and the new invitation. I must type "enter"
EXPECTED RESULT
During swiping my finger, the fprint dialog does not disappear. I can see the result of my swiping and the new invitation.
The fprint dialog must not disappear until success or returning to password authentication.
I sent a report to kde team.
https://bugs.kde.org/show_bug.cgi?id=458424
Here is the answer :
This is an fprint/PAM issue. The fingerprint authentication method has a timeout and stops being active after a time. That's just the way it works. To alter this would require changes outside of the scope of KDE, either in fprint, PAM, or their configuration files.