5

As I know we don't need to install any library for ubuntu 20.04 where we can enable by Settings->Users->Authentication & Login.

but when I trying to enable I'm getting an error "Could not access any fingerprint readers Please contact your system administrator for help!"

P:S. I have an inbuilt fingerprint sensor on my machine, but when using lsusb I could not able to see fingerprint driver.

7

There is no driver available for most fingerprint readers at the moment for most Lenovo laptops. But to be sure you can do a check.

1.Install this package sudo apt install hw-probe

2.Run this command sudo -E hw-probe -all (creates a File with all devices which is located in /root/HW_PROBE/LATEST/hw.info/devices.json)

3.Open the file from the last command: (first type sudo su) gedit /root/HW_PROBE/LATEST/hw.info/devices.json

4.Find the fingerprint reader somewhere at the bottom of this file and if you see "Status" : "failed" then there is no driver installed.

5.The first line of the fingerprint driver is something like this "usb:28ck-58dk" (example)

6.https://linux-hardware.org/index.php?view=search open this and write into DeviceID 58dk (example) and check if the driver in which kernel will be supported.

3
  • All libfprint* drivers are userspace drivers, not kernel drivers. You'll not be able to find driver w/o uploading the probe in your case because search is performed in the libfprint source code. – linuxbuild Jun 17 '20 at 19:20
  • Are you sure ? Because I found for my Laptop that no driver is installed without uploading the probe.. – kannzzmm2 Jun 18 '20 at 8:49
  • Not installed, but may exist. – linuxbuild Jun 18 '20 at 10:10

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