verify-retry-scan always hangs
Submitted by Francis Herne
Description
When checking my fingerprint using either pam_fprintd or fprintd-verify, if I get a 'verify-retry-scan' response (usually because I mis-swiped), all subsequent retries also return 'verify-retry-scan' however carefully I swipe my finger. This hangs login on that vtty, and prevents fprintd from being used until it eventually times out.
Expected: Retrying after 'verify-retry-scan' should have some possibility of succeeding. Actual: Triggering 'verify-retry-scan' hangs fprintd and hence whatever's using it for verification.
Using fprintd 0.5.1 on Arch Linux x86_64, with '08ff:2810 AuthenTec, Inc. AES2810' swipe-style reader on a Thinkpad X200.
Output: Using device /net/reactivated/Fprint/Device/0 Listing enrolled fingers:
- #0: right-index-finger
- #1 (closed): left-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) [ad infinitum]