SUMMARY I am using a Framework laptop and have successfully enrolled my fingerprint. It's working great for sudo and unlocking a locked screen. However, on boot, I am prompted for a password, and no matter what password I put in the box (correct or incorrect) the login window appears to hang (i.e. the cursor is still responsive, but everything else is disabled). I've discovered that it's actually waiting for me to scan my fingerprint. It doesn't matter what I put in the password field beforehand, as long as my fingerprint matches, it'll continue to log-in. STEPS TO REPRODUCE 1. Enroll fingerprint 2. Restart computer OBSERVED RESULT Prompts for password, but does not accept password, instead waits for me to scan my fingerprint without printing any instructions to do so. EXPECTED RESULT A prompt to scan my fingerprint or have it accept my password to log in without a fingerprint. SOFTWARE/OS VERSIONS Linux/KDE Plasma: NixOS 22.11 KDE Plasma Version: 5.26.3 KDE Frameworks Version: 5.99.0 Qt Version: 5.15.7 ADDITIONAL INFORMATION The copy on the fingerprint enrollment may also be out of date. It says "Logging into the system with your fingerprint is not supported," but it appears not only to work, but to be the _only_ way to log into the system.
Interesting, the SDDM login screen doesn't have official support for this yet. Did you manually enable stuff? Either way it's an SDDM bug; see https://github.com/sddm/sddm/issues/284.