Cannot verify fingerprint on ELAN (usb id 04f3:0903)
I installed libfprint 0.99.0 from source on Ubuntu 19.04. I had to patch the source first with the change describe in issue #148 (moved), otherwise the verification capture loop hung om the first attempt (which always failed).
Anyway, after enrollment, verification never succeeds:
$ fprintd-verify
Using device /net/reactivated/Fprint/Device/0
Listing enrolled fingers:
- #0: right-index-finger
Verify result: verify-retry-scan (not done)
Verify result: verify-retry-scan (not done)
Verify result: verify-retry-scan (not done)
Verify result: verify-retry-scan (not done)
Verify result: verify-retry-scan (not done)
Verify result: verify-no-match (done)
Here is the description of the fingerprint device according to lsusb:
$ lsusb
Bus 001 Device 005: ID 04f3:0903 Elan Microelectronics Corp.