Arch Linux

labdocodigo

Member

From: Brasil

Registered: 2015-06-17

Posts: 3

Website

HP Envy, Validity Sensors, libfprint

Hello,

I'm trying to do my fingerprint machine work.

The computer is this:
HP ENVY TouchSmart 17-j141nr Notebook PC (ENERGY STAR)
Serial Number: 6CG425D7VL
Product Number: E8A16UAR

The fingerprint is this one:
Bus 002 Device 006: ID 138a: 0050 Validity Sensors, Inc. Swipe Fingerprint Sensor

Following this tutorial https://wiki.archlinux.org/index.php/Fprint I discovered that this fingerprint is not supported by fprint.

Then I found these drivers on google:
https://github.com/payden/libfprint

This video shows that this driver works on the same model of fingerprint:
https://www.youtube.com/watch?v=u09k3xN3AsI

However I did not succeed.

What I tried:
fprintd + Payden / libfprint
fingerprint-gui (from AUR) + Payden / libfprint

See the log of my last attempt (with fingerprint-gui + Payden / libfprint):
https://github.com/payden/libfprint/issues/7

Can anyone help me please?

erickwill

Member

Registered: 2013-11-05

Posts: 137

Re: HP Envy, Validity Sensors, libfprint

Hello,

I'm trying to do my fingerprint machine work.

The computer is this:
HP ENVY TouchSmart 17-j141nr Notebook PC (ENERGY STAR)
Serial Number: 6CG425D7VL
Product Number: E8A16UAR

The fingerprint is this one:
Bus 002 Device 006: ID 138a: 0050 Validity Sensors, Inc. Swipe Fingerprint Sensor

Following this tutorial https://wiki.archlinux.org/index.php/Fprint I discovered that this fingerprint is not supported by fprint.

Then I found these drivers on google:
https://github.com/payden/libfprint

This video shows that this driver works on the same model of fingerprint:
https://www.youtube.com/watch?v=u09k3xN3AsI

However I did not succeed.

What I tried:
fprintd + Payden / libfprint
fingerprint-gui (from AUR) + Payden / libfprint

See the log of my last attempt (with fingerprint-gui + Payden / libfprint):
https://github.com/payden/libfprint/issues/7

Can anyone help me please?

Did you get to have the 138a:0050 Validity Sensors working?

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,354

Re: HP Envy, Validity Sensors, libfprint

Hey, this is my laptop too   Nice, nice machine.

I played with this last summer.  I did get it to work -- sort of, but it was not easy and I don't remember the details.  Unfortunately, I cannot reach my machine right now so I cannot remind myself what I did.  If you are interested I can look that up for you tonight.

In the end, I gave up.  Yes the scanner works, but my impression is that it is a hopelessly inadequate device.  It scans, and you can get a picture of the print, but the image and repeatablity are horrid. The fprint software would refuse to correlate new scans with the reference because it could not identify enough matching structures.   I get the feeling that it works on Windows by being less than picky about what it calls a match.  Again, this is just my impression.  Maybe there is some magic that the Windows driver has that the reverse engineered version doesn't that allows the capture of repeatable images.  I doubt it.

Last edited by ewaller (2015-12-23 16:32:16)

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Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
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erickwill

Member

Registered: 2013-11-05

Posts: 137

Re: HP Envy, Validity Sensors, libfprint

Hey, this is my laptop too   Nice, nice machine.

I played with this last summer.  I did get it to work -- sort of, but it was not easy and I don't remember the details.  Unfortunately, I cannot reach my machine right now so I cannot remind myself what I did.  If you are interested I can look that up for you tonight.

In the end, I gave up.  Yes the scanner works, but my impression is that it is a hopelessly inadequate device.  It scans, and you can get a picture of the print, but the image and repeatablity are horrid. The fprint software would refuse to correlate new scans with the reference because it could not identify enough matching structures.   I get the feeling that it works on Windows by being less than picky about what it calls a match.  Again, this is just my impression.  Maybe there is some magic that the Windows driver has that the reverse engineered version doesn't that allows the capture of repeatable images.  I doubt it.

Maybe there is a new perspective arising

http://askubuntu.com/questions/717304/h … ensors-inc

Hopefully we gonna figure how to implement it to Arch.

x33a

Forum Fellow

Registered: 2009-08-15

Posts: 4,587

Re: HP Envy, Validity Sensors, libfprint

Moving to "Laptop Issues".