SUMMARY

login screen or lock screen, with my index or my middle finger, fingerprint fails with errors :
- swiping is too short
or
- fingerprint is not recognized

Is there any problem with my BENSS reader ?

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.25.4
KDE Frameworks Version: 5.97.0
Qt Version: 5.15.5
KDE Gears 22.08.0

ADDITIONAL INFORMATION

fingerprint reader : usb adapter Benss (ID 04f3:0c3d Elan Microelectronics Corp. ELAN:Fingerprint)

sddm file contents :

#%PAM-1.0
auth    [success=1 new_authtok_reqd=1 default=ignore]   pam_unix.so
try_first_pass likeauth nullok
auth    sufficient      pam_fprintd.so
auth     include        common-auth
account  include        common-account
password include        common-password
session  required       pam_loginuid.so
session  include        common-session
session  optional       pam_keyinit.so revoke force

kde file contents:

auth                    sufficient      pam_unix.so try_first_pass likeauth nullok
auth                    sufficient      pam_fprintd.so