I have a fingerprint sensor supported by libfprint. How can I use it to log in to Elementary OS?
The Elementary OS greeter has support for fprintd via PAM.
First, install the required packages:
sudo apt install libpam-fprintd
fprintd if it's not yet started:
sudo systemctl start fprintd
Then, enroll a fingerprint:
Finally, enable the
fprintd PAM module:
sudo pam-auth-update --enable fprintd
A fingerprint icon will now show up on the login screen, indicating that the sensor is active.