Difference between revisions of "How to enable integrated fingerprint reader with fprint"
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== Ubuntu 11.04 == | == Ubuntu 11.04 == | ||
| − | The [[integrated fingerprint reader]] on the ThinkPad {{X220}} (at least) is | + | The [[integrated fingerprint reader]] on the ThinkPad {{X220}} (at least) is supported in {{Ubuntu 11.04}} (natty). |
Install the necessary packages if they aren't already present. | Install the necessary packages if they aren't already present. | ||
| Line 13: | Line 13: | ||
</pre> | </pre> | ||
| − | Log in to the desktop | + | Log in to the desktop. Open a terminal. In the terminal run <tt>fprintd-enroll</tt> and swipe your right index finger five times. |
| − | Now you should be able to | + | Now you should be able to authenticate by swiping your right index finger. |
| + | |||
| + | If you have an encrypted home directory or a password-protected default keyring then logging in from GDM by fingerprint is broken: the home directory cannot be decrypted. To deal with this, edit <tt>/etc/pam.d/gdm</tt> so that it includes <tt>/etc/pam.d/common-auth-nofinger</tt> rather than <tt>/etc/pam.d/common-auth</tt>; copy <tt>/etc/pam.d/common-auth</tt> to <tt>/etc/pam.d/common-auth-nofinger</tt> and remove the line <tt>auth [success=3 default=ignore] pam_fprintd.so</tt> from the latter. | ||
Revision as of 11:58, 3 August 2011
Ubuntu 11.04
The integrated fingerprint reader on the ThinkPad X220 (at least) is supported in Template:Ubuntu 11.04 (natty).
Install the necessary packages if they aren't already present.
aptitude install libpam-fprintd
Confirm that the needed lines in common-auth are already present.
$ grep fprint /etc/pam.d/common-auth auth [success=2 default=ignore] pam_fprintd.so
Log in to the desktop. Open a terminal. In the terminal run fprintd-enroll and swipe your right index finger five times.
Now you should be able to authenticate by swiping your right index finger.
If you have an encrypted home directory or a password-protected default keyring then logging in from GDM by fingerprint is broken: the home directory cannot be decrypted. To deal with this, edit /etc/pam.d/gdm so that it includes /etc/pam.d/common-auth-nofinger rather than /etc/pam.d/common-auth; copy /etc/pam.d/common-auth to /etc/pam.d/common-auth-nofinger and remove the line auth [success=3 default=ignore] pam_fprintd.so from the latter.
