lj·rk<p>1. Since GNOME Settings seems to depend on <a href="https://todon.eu/tags/AuthSelect" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AuthSelect</span></a> (at least on <a href="https://todon.eu/tags/fedora" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fedora</span></a>), ensure that it is running, using your preferred profile (e.g., in my case `local`) and fingerprint auth is generally enabled: `sudo authselect select local &amp;&amp; sudo authselect enable-feature with-fingerprint`<br>2. Enroll your fingerprint in GNOME Settings -&gt; System -&gt; Users<br>3. Now, disable authselect since it cannot distinguish b/w loggin in and other types of authentication and otherwise <a href="https://todon.eu/tags/GDM" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GDM</span></a> <a href="https://todon.eu/tags/gSettings" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>gSettings</span></a> will complain that "the key is not writable" :( `sudo authselect opt-out`<br>4. Remove the line pertaining enable-fingerprint-authentication from the <a href="https://todon.eu/tags/dconf" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>dconf</span></a> lock in `/etc/dconf/db/distro.d/locks/20-authselect`<br>5. Recompile dconf: `sudo dconf update`<br>6. Finally, configure GDM to not use fingerprint authentication for your user: `gsettings set org.gnome.login-screen enable-fingerprint-authentication false`<br>7. Optionally (untested): Ensure that `dbus-launch` is installed and run `sudo -u gdm dbus-launch gsettings set org.gnome.login-screen enable-fingerprint-authentication false` to disable this system-wide.</p><p>Unfortunately, not only does authselect not distinguish b/w anything GDM related and other auth types, GDM doesn't distinguish b/w log-in and unlocking the screen(?) So this breaks fingerprint screen-unlock.</p><p>2/3</p>