使用项目 uunicorn/python-validity。

设置

sudo apt remove fprintd
sudo add-apt-repository ppa:uunicorn/open-fprintd
sudo apt-get update
sudo apt install open-fprintd fprintd-clients python3-validity
...wait a bit...
fprintd-enroll

在 设置 -> 用户 中即可设置指纹登陆，如果锁定界面，指纹设备 LED 灯亮起，但扫描无效，尝试以下操作：

sudo systemctl stop python3-validity
sudo validity-sensors-firmware
sudo python3 /usr/share/python-validity/playground/factory-reset.py

# At some of the above points you may get a 'device busy' error,
# depending on how systemctl plays along. Kill offending processes if
# necessary, or re-run the systemctl stop python3-validity command, 
# in case it has automatically been restarted, or or kill other
# offending processes.

sudo systemctl start python3-validity
fprintd-enroll