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in part related to does Lenovo fingerprint reader work in ubuntu?

i did follow the several instructions one can find on here and elsewhere. i succeeded also in enrolling my index finger with the gui and with running pam-uth-update activated the fingerprint-reader for login or sudo commands

whenever i now boot the machine or give sudo commands i get a command shown to identify with my finger. the LED of the fingerprint-reader also SHORTLY lights up and then goes off.

SOMETIMES logging in like that works most of the times it does not work

i am sure this has to do with the led being on for short moment only.

but why?? any log to check??

btw: works fine in windows 7 so hardware is okay and lusb also shows my reader is supported by finger-print-gui

share|improve this question
I have a HP HDX16 with a fingerprint scanner using the Fingerprint GUI, and I've noticed that it is tougher to get it to recognize me than when I boot into Win7 on the same machine. Maybe the Fingerprint GUI is using a more strict policy for comparison. – Namrac Jan 15 '13 at 3:29
yes, maybe. because in windows i never fail. but especially that the LED often goes out quickly is something i cannot understand. maybe driver related? – Gpunkt Jan 15 '13 at 19:41
Are you still interested in this question? – Seth Mar 10 '14 at 4:28
for now i did give up with logging into my lubuntu with fingerprint-reader. but am open to try again to secure my system better – Gpunkt Mar 16 '14 at 16:04

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