Fingerprint Reader Usage
From Knowledge76
Contents |
Overview
With the fingerprint scanner on System76 laptops you can log into Ubuntu, install applications, or perform any other administrative action with the swipe of a finger.
Installation - Ubuntu 10.10 and Higher
Check if fingerprint-gui is already installed by going to System > Preferences > Fingerprint GUI. Go to the next step if Fingerprint GUI opens. Otherwise paste the following lines into a terminal (Applications > Accessories > Terminal)
sudo add-apt-repository ppa:fingerprint/fingerprint-gui sudo apt-get update sudo apt-get install fingerprint-gui policykit-1-fingerprint-gui libbsapi
Log out and then log in again for new settings to take effect.
Important note about Fingerprint Readers in Ubuntu 11.04
There is currently an issue with Fingerprint reader compatibility and Ubuntu 11.04. The reader works fine for logging in, but does not work for sudo requests or other post-login authentication tasks. We are working diligently to solve this issue, but in the meantime, if you have upgraded to Ubuntu 11.04, we recommend removing the fingerprint reader support by following the instructions below.
Scan Your Finger
- Open Fingerprint GUI (System > Preferences > Fingerprint GUI)
- Click Next and then choose the finger you want to scan.
- Swipe your finger.
- Click Next and Then Cancel.
Log out of Ubuntu. Click your User Name to log in and you will be prompted to swipe your finger.
Removal
If you decide you no longer want the Fingerprint functionality, then you can remove the packages. However, since one important Gnome Package was replaced during the installation, it won't be reinstalled automatically first. So, you need to install the package manually first:
sudo apt-get install policykit-1-gnome
You are then clear to remove the rest of the packages:
sudo apt-get remove fingerprint-gui policykit-1-fingerprint-gui libbsapi
