Arch Linux

joshuatheprogrammer

Member

Registered: 2024-10-20

Posts: 3

Fingerprint refuses to work on P14s gen 5?

I'm at my wits end trying to get my fingerprint to work on Arch. I'm using a P14s Gen 5, have enrolled and verified my fingerprint with `fprintd` successfully. I followed the Wiki to update my `/etc/pam.d/system-local-login`, `/etc/pam.d/sudo`, and several others. No matter what, though, it continues to only use my (typed) password for login AND sudo verification. I also added myself to the `input` group, restarted the computer, and so forth. I'm using lightdm as the display manager, and i3 as the window manager. Am I missing something?

`lsusb` outputs the fingerprint device as

27c6:6594 Shenzhen Goodix Technology Co.,Ltd. Goodix USB2.0 MISC

, but I don't believe this to be a driver issue because fprintd recognizes and verifies my fingerprint.

One oddity is that `fprintd-verify` will not work unless I put `sudo` in front. Could that be the cause?

/etc/pam.d/system-local-login:

#%PAM-1.0
auth  sufficient pam_fprintd.so
auth      include   system-login
account   include   system-login
password  include   system-login
session   include   system-login

/etc/pam.d/sudo:

#%PAM-1.0

auth sufficient pam_fprintd.so
auth include system-auth
account include system-auth
session include system-auth

Last edited by joshuatheprogrammer (2024-10-20 02:46:04)

joshuatheprogrammer

Member

Registered: 2024-10-20

Posts: 3

Re: Fingerprint refuses to work on P14s gen 5?

Bump. Any help at all? I noticed that it WORKS when trying `su -c 'blah blah'` (i.e., it prompts for only my fingerprint). Using `sudo su` prompts for BOTH my password THEN my fingerprint, and `sudo anything-else` only uses my password.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 23,300

Re: Fingerprint refuses to work on P14s gen 5?

How did you enroll the fingerprint? You're supposed to run that as your normal user, or add the user you want your print to be enrolled with as an argument. It sounds like you enrolled the fingerprint for the root user, not your normal user.

https://wiki.archlinux.org/title/Fprint … _signature

Note the sign each command starts with $ indicates to be ran as normal user # indicates to be ran as root. And note the first sentence mentioning the need of a polkit authentication agent if you want to set it up as a normal user directly.

Last edited by V1del (2024-10-23 01:32:36)