1

I'm using Xubuntu 20.04 LTS on a Lenovo Thinkpad X230, which features an integrated Upek fingerprint reader. From other posts, I've seen that the fprintd added support for this device circa 2013, but I have the deeper problem of the system not even detecting the device.

lsusb should list a 147e:20xx device, which conforms to a Upek Biometrics fingerprint reader, but it's simply absent. Only root hubs, Intel Rate Matching Hubs and the on-board webcam are listed.

As far as I know, the BIOS doesn't have control over disabling the device, only enabling it as a "pre-desktop authenticator". I've tried enabling and disabling this setting, to no avail.

Any ideas, is there a H/W fault?

2
  • Check Security -> I/O Port Access -> Fingerprint in BIOS if it's disabled and you could try Security -> Reset Fingerprint Data. The latter will fail if the FPR is not working.
    – Freddy
    Jul 1 '20 at 18:00
  • @Freddy Fantastic - the I/O Port Access setting did it. Not exactly an intuitive place to put the option! Jul 1 '20 at 18:46
1

So it turns out that there are options to allow/disallow I/O access of peripherals to the OS. These are located in Security -> I/O Port Access. Simply enable the Fingerprint option here (and, for some reason Bluetooth was also disabled for me, don't know if that's normal). The device will then present itself to the OS.

Thanks to @Freddy in the comments of the question.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.