Public bug reported:
(Note that I'm not using the fingerprint reader.)
If you have:
- fprintd
but not:
- libpam-fprintd
gdm3/pam refuses login.
The following logs are observed at boot:
dbus-daemon[1928]: [system] Activating via systemd: service
name='net.reactivated.Fprint' unit='fprintd.service' requested by ':1.45'
(uid=128 pid=2541 comm="/usr/bin/gnome-shell " label="unconfined")
fprintd[2799]: libusb: error [udev_hotplug_event] ignoring udev action change
fprintd[2799]: libusb: error [udev_hotplug_event] ignoring udev action change
dbus-daemon[1928]: [system] Successfully activated service
'net.reactivated.Fprint'
systemd[1]: Started Fingerprint Authentication Daemon.
This is seen when a gdm login is attempted:
gdm-fingerprint][3012]: PAM unable to dlopen(pam_fprintd.so):
/lib/security/pam_fprintd.so: cannot open shared object file: No such file or
directory
gdm-fingerprint][3012]: PAM adding faulty module: pam_fprintd.so
gdm-fingerprint][3012]: gkr-pam: no password is available for user
Either removing fprintd or installing libpam-fprintd fixes so you can
log in again.
Versions:
- ubuntu 22.04
- gdm3 42.0-1ubuntu7.22.04.4
- fprintd 1.94.2-1ubuntu0.22.04.1
- libpam-fprintd 1.94.2-1ubuntu0.22.04.1
Cheers,
Walter Doekes
** Affects: gdm3 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2069498
Title:
(jammy) gdm3 login impossible with fprintd but no libpam-fprintd
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