fprint on HP ZBook 17 G8 Fury running SuSE Linux Enterprise Desktop 15 SP5

[Eric J.P.E. Davanture]

Greetings,

I have SuSE Linux Enterprise Desktop (SLED) 15 SP5 and I use KDE Plasma 
X11 with fprintd package installed (v 1.94.2-bp155.2.3.1) to unlock the 
desktop using the integrated fingerprint reader of an HP ZBook 17 G8 
Fury (lsusb says: "Bus 003 Device 003: ID 06cb:00f0 Synaptics, Inc." 
which is supported by fprint).

It worked fine for some weeks but after some SLED 15 SP5 updates (using 
zypper up), something broke fprintd package and SuSE Technical Support 
does not find what :-(

I can't unlock anymore the desktop with my fingerprint. I get "Unlocking 
failed" error message and I have to enter the password with the keyboard 
as before.

A few commands I tested:

└─#journalctl -u fprintd.service
Mar 22 11:13:57 HP-ZBook17-G8 systemd[1]: Starting Fingerprint 
Authentication Daemon...
Mar 22 11:13:58 HP-ZBook17-G8 systemd[1]: Started Fingerprint 
Authentication Daemon.
Mar 22 11:14:57 HP-ZBook17-G8 systemd[1]: fprintd.service: Deactivated 
successfully.
Mar 22 15:23:50 HP-ZBook17-G8 systemd[1]: Starting Fingerprint 
Authentication Daemon...
Mar 22 15:23:50 HP-ZBook17-G8 systemd[1]: Started Fingerprint 
Authentication Daemon.
Mar 22 15:23:53 HP-ZBook17-G8 fprintd[18155]: Authorization denied to 
:1.375 to call method 'Release' for device 'Synaptics Sensors': Device 
was not claimed before use

└─#fprintd-enroll
Using device /net/reactivated/Fprint/Device/0
Enrolling right-index-finger finger.
Enroll result: enroll-stage-passed
Enroll result: enroll-retry-scan
Enroll result: enroll-stage-passed
Enroll result: enroll-stage-passed
Enroll result: enroll-retry-scan
Enroll result: enroll-stage-passed
Enroll result: enroll-stage-passed
Enroll result: enroll-stage-passed
Enroll result: enroll-stage-passed
Enroll result: enroll-stage-passed
Enroll result: enroll-retry-scan
Enroll result: enroll-completed

└─#fprintd-verify
Using device /net/reactivated/Fprint/Device/0
Listing enrolled fingers:
- #0: right-index-finger
Verify started!
Verifying: right-index-finger
Verify result: verify-no-match (done)

Any idea on how to investigate this problem would be very much appreciated.

Thanks a lot by now.

Librement vôtre / Libremente suyo / Freely yours,
*Eric J.P.E. Davanture - eric.davanture at orange.fr
* Mobile: +33-607.08.01.78
*_Approximate location:_* Planet Earth < Solar System < Milky Way Galaxy 
< Local Group < Virgo Cluster < Laniakea Supercluster < known Universe 
<https://youtu.be/P6cw5Yv-zqU>
/- There are 10 types of people in this world: those who understand 
binary and those who don't
- There is NO CLOUD, just other people's computers
- There is NO INTELLIGENCE in AI, just huge knowledge and deep statistics/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/fprint/attachments/20240322/2916fa1e/attachment.htm>