Fingerprint GUI

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usb_open failed, error -3

Im trying to use the build in fingerprint sensor but when I open fingerprint-gui -d, the first step after printing information trigger this error
`(process:7575): libfprint-async-ERROR **: 03:36:36.833: usb_open failed, error -3
[1]    7575 trace trap (core dumped)  fingerprint-gui -d
`
Device:
toshiba A50
ValiditySensors, inc VFS Fingerprint sensor
Permalink  
July 4th, 2018 8:37am
Hi,

having the same issue um a Lenovo T420.
Have you managed to solve anything?

Regards,
K
Permalink Kay 
July 16th, 2018 11:48am