*** If you're not sure this is actually a bug, instead post about it at https://discuss.kde.org If you're reporting a crash, attach a backtrace with debug symbols; see https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** SUMMARY Even though I have configured fingerprint authentication through the "Users" -> "Configure Fingerprint Authentication" screen, there is no prompt to use a fingerprint to unlock my laptop. STEPS TO REPRODUCE 1. Configure fingerprint authentication by navigating to System Settings -> Users -> Selecting a user -> Configure Fingerprint Authentication and following the prompts to add a fingerprint 2. Verify that fprintd is configured correctly by running `fprintd-verify` and following the prompts, ensuring it shows a success result 3. Lock the screen 4. Attempt to unlock the screen OBSERVED RESULT There is no prompt to use a fingerprint to unlock, and touching the fingerprint reader does nothing EXPECTED RESULT The lock screen should prompt me to use a fingerprint to unlock, and touching the fingerprint reader with an enrolled fingerprint should unlock the screen SOFTWARE/OS VERSIONS Linux/KDE Plasma: (available in About System) KDE Plasma Version: 6.0.2 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 ADDITIONAL INFORMATION This is a KDE Neon install, upgraded to Plasma 6 from Plasma 5
Managed to fix this for me - the issue was that `libpam-fprintd` wasn't installed. I suspect this was because of the upgrade from Plasma 5 to Plasma 6 Neon. Leaving this open, perhaps the fingerprint config UI needs to warn if the right PAM modules aren't found when configuring fingerprints?
There are other places in KCMs where we surface errors when there's a missing dependency. It would make sense to do this in the Users KCM for fingerprint auth as well