Fingerprint Reader unter CachyOS

install fingerprint reader software

sudo pacman -S fprintd

# Enroll fingerprint(s)
fprintd-enroll

# Verify
fprintd-verify

Using device /net/reactivated/Fprint/Device/0
Listing enrolled fingers:
 - #0: right-index-finger
 - #1: right-thumb
Verify started!
Verifying: right-index-finger
Verify result: verify-match (done)

Lockscreen geht nun, für Login

/etc/pam.d/sddm
# add to top:

auth        [success=1 new_authtok_reqd=1 default=ignore]  pam_unix.so try_first_pass likeauth nullok
auth        sufficient  pam_fprintd.so

Für sudo

/etc/pam.d/sudo
und
/etc/pam.d/su
# add to top:

# Disallow fingerprint in sudo/su without tty
auth       [success=1 default=ignore]  pam_succeed_if.so    service in sudo:su:su-l tty in :unknown
auth       sufficient      pam_fprintd.so

Details siehe unter https://community.frame.work/t/guide-solved-sudo-and-login-with-fingerprint-reader-under-kde-arch-linux/37009/21