[ltp] T43 finger print reader problems

Alastair McKinley linux-thinkpad@linux-thinkpad.org
Tue, 06 Dec 2005 22:54:30 +0000


>On Tue, 2005-12-06 at 21:13 +0000, Alastair McKinley wrote:
>> Actually what happens when I press "enter" is the fingerprint reader
>>  GUI prompt appears and it recognises my fingerprint, but it does not
>>  authenticate me.
>> 
>> As soon as I press enter a message appears in /var/log/messages
>>  complaining that authentication has failed.

>That's because the password prompt comes from pam_unix.so which is
>'required' and called first in your configuration, and AFTER that the
>bioapi module is called which tries to authenticate and even succeeds,
>but since pam_unix.so is 'required' it doesn't matter any longer.
>
>Change the ordering to call the bioapi first which is 'sufficient' for
>the authentication to succeed, but if it fails it will fall back to the
>'required' pam_unix.so module.

>BTW, that and a lot more is explained in the PAM documentation at
>http://www.kernel.org/pub/linux/libs/pam/Linux-PAM-html/pam.html .
>Somebody just needs to read it. ;)
>
>Regards
>WK

Thanks a lot Wolfgang, I think I've got it sorted!

Yes reading the PAM docs would be a good idea :)

Also I got a lot of info for setting up my hardware/suspend etc from your site, thanks for that!!

Best regards,

Alastair