Arch Linux

manray

Member

Registered: 2022-01-01

Posts: 21

pam_fprint_enroll no devices detected dell xps 15 9510

My fingerprint sensor is detected by fprintd but not pam_fprintd.

I am trying to get the fingerprint sensor to work on the dell xps 15 9510 running a fresh install of arch linux.

After following these instructions I am able to use fprint_enroll to add prints to the system. Therefore the fingerprint sensor is working just fine and there are prints in the system.

I would like to use the fingerprint sensor to login using a pam module. I followed these instructions. The only thing that I am completely unable to install is fprint_demo which is just a gui for fprint (I think). It errors during compilation. I do not believe this is relevant.

After editing the pam file apropriately, the I am not prompted to use the sensor on login which indicates that pam_fprintd fails.

When I run pam_fprint_enroll I get "No devices detected". I assume that the reason that I cannot use the fingerprint sensor on login is because the sensor is not detected with pam_fprintd. I don't understand why the sensor is not detected with pam_fprintd, but it is detected with fprintd.

Any ideas?