How To Enable Fingerprint Scanner on Thinkpad Laptop in Archlinux

Yeah, as a linux user i know how tiring is typing a password each we run command as super user or simply login. Not again, i’ve purchased Thinkpad T430s with fingerprint scanner, but without setting it up it wont do anything. This is a very brief tutorial how to enable fingerprint scanner in Archlinux system.

1. Install fingerprint-gui from AUR
2. Make /lib/udev/rules.d/40-libfprint0-custom.rules as follows

ATTRS{idVendor}=="147e", ATTRS{idProduct}=="2020", MODE="0664", GROUP="plugdev"

3. Add yourself to the plugdev group

# usermod -a -G plugdev username

4. Reboot

5. Open fingerprint-gui to do the enrolment

6. Add this line to /etc/pam.d/sudo, /etc/pam.d/su, /etc/pam.d/login and /etc/pam.d/polkit-1

auth sufficient pam_fingerprint-gui.so

7. Try do $ sudo something in terminal, you should be able to use your fingerprint for authentication

8. You can also login in tty with your fingerprint

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Originally published at chamelemon.wordpress.com on August 7, 2018.