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I've got a new laptop which is Lenove's E420s. And I have encountered a big problem that I can't make the fingerprint reader work properly.

I've also tried fingerprint-gui. But unfortunately, it's told that "No Device Found". Here is my screenshot: http://ge.tt/98Xg2WD/v/0

It's said that 147e:1002 is supported by fingerprint-gui on the official website.

So, I'm curious about the situation. Anybody knows?

P.S: I'm using gentoo, but I think this problem may not have anything to do with distribution since I compiled the source from official site.

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I have the same device in my System 76 Serval. fprint_demo, fingerprint-gui, fingerprint-identifier will only recognise my fingerprint reader when I run them with gksudo.

I suspect it needs a udev rule created for it in order to run properly.

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good explanation! But it does not work here using gksudo..T_T – ymfoi May 19 at 2:45
In my case it was actually because my user account wasn't in either of the following user groups : scanner, usbdev. – airtonix May 19 at 17:38
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