Maybe this helps: sudo systemctl start fprintd
try to enroll via GUI output of syslog: May 27 11:50:38 scc-ej4555-01 systemd[1]: Starting Fingerprint Authentication Daemon... May 27 11:50:38 scc-ej4555-01 systemd[1]: Started Fingerprint Authentication Daemon. May 27 11:50:44 scc-ej4555-01 fprintd[53018]: free(): invalid pointer May 27 11:50:44 scc-ej4555-01 systemd[1]: fprintd.service: Main process exited, code=dumped, status=6/ABRT May 27 11:50:44 scc-ej4555-01 systemd[1]: fprintd.service: Failed with result 'core-dump'. May 27 11:50:47 scc-ej4555-01 gnome-control-c[52854]: gtk_widget_set_visible: assertion 'GTK_IS_WIDGET (widget)' failed May 27 11:50:47 scc-ej4555-01 kernel: [ 7271.791188] gnome-control-c[52854]: segfault at 8 ip 00007f709d2ac6cf sp 00007ffcd44e1730 error 4 in libgtk-3.so.0.2404.14[7f709d20c000+36f000] May 27 11:50:47 scc-ej4555-01 kernel: [ 7271.791221] Code: 25 28 00 00 00 0f 85 f5 00 00 00 48 83 c4 48 5b 5d 41 5c 41 5d c3 0f 1f 44 00 00 48 89 ef e8 a8 ef ff ff 48 8b 43 68 48 89 ef <48> 8b 70 08 e8 08 93 28 00 48 8b 7b 38 44 89 e6 e8 2c 49 15 00 48 May 27 11:50:47 scc-ej4555-01 systemd[1368]: gnome-launched-gnome-control-center.desktop-52854.scope: Succeeded. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878172 Title: FUJITSU LIFEBOOK U748: 138a:0050 Validity Sensors not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libfprint/+bug/1878172/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
