Bug#1091672: gdm3 47.0-3 password field greyed out

[Richard]

Package: gdm3
Version: 47.0-3
Severity: normal

Dear Maintainer,
probably since gdm3 was upgraded to v47, when trying to log in, the password
field often is just greyed out leaving only fingerprint login available. But
using fingerprint login isn't desirable as that won't unlock the Gnome keyring,
so the password still has to be entered. Usually it helps going back to the
user selection and seleting the user again, but sometimes this needs to be done
multiple times until the password field allows for input. The only alternative
is to wait for fingerprint authentication to time out, which isn't ideal
either.

Here's an image showing how the lockscreen looks in this stage (as I'm not
certain it's the best behavior to just attach the image to this email):
https://imgur.com/a/m95ySm0

Sadly it's difficult to find any logs about this issue. From journalctl I can
see this line that may be related:

gdm-fingerprint][40550]: gkr-pam: no password is available for use


Seting "Enable=true" in /etc/gdm3/daemon.conf under [debug] does show more output in the journal, but it's a lot more, so I don't know what of it would actually be relevant.


Other than that, I don't find any logs. /var/log/gdm3 is just empty. If I can
help provide any further information, please let me know how.


-- System Information:
Debian Release: trixie/sid
   APT prefers testing
   APT policy: (990, 'testing'), (50, 'experimental'), (50, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.6-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gdm3 depends on:
ii  accountsservice                             23.13.9-7
ii  adduser                                     3.137
ii  dbus [default-dbus-system-bus]              1.16.0-1
ii  dbus-bin                                    1.16.0-1
ii  dbus-daemon                                 1.16.0-1
ii  dconf-cli                                   0.40.0-4+b3
ii  dconf-gsettings-backend                     0.40.0-4+b3
ii  debconf [debconf-2.0]                       1.5.87
ii  gir1.2-gdm-1.0                              47.0-3
ii  gnome-classic [x-session-manager]           47.2-1
ii  gnome-classic-xsession [x-session-manager]  47.2-1
ii  gnome-console [x-terminal-emulator]         47.1-3
ii  gnome-session [x-session-manager]           47.0.1-1
ii  gnome-session-bin                           47.0.1-1
ii  gnome-session-common                        47.0.1-1
ii  gnome-session-xsession [x-session-manager]  47.0.1-1
ii  gnome-settings-daemon                       47.2-1
ii  gnome-shell                                 47.2-2
ii  gnome-terminal [x-terminal-emulator]        3.54.2-2
ii  gsettings-desktop-schemas                   47.1-1
ii  konsole [x-terminal-emulator]               4:24.12.0-1
ii  libaccountsservice0                         23.13.9-7
ii  libaudit1                                   1:4.0.2-2
ii  libc6                                       2.40-4
ii  libgdk-pixbuf-2.0-0                         2.42.12+dfsg-1+b1
ii  libgdm1                                     47.0-3
ii  libglib2.0-0t64                             2.82.4-1
ii  libglib2.0-bin                              2.82.4-1
ii  libgtk-3-0t64                               3.24.43-4
ii  libgudev-1.0-0                              238-5+b1
ii  libjson-glib-1.0-0                          1.10.6+ds-1
ii  libkeyutils1                                1.6.3-4
ii  libpam-modules                              1.5.3-7+b1
ii  libpam-runtime                              1.5.3-7
ii  libpam-systemd [logind]                     257.1-4
ii  libpam0g                                    1.5.3-7+b1
ii  librsvg2-common                             2.59.1+dfsg-1
ii  libselinux1                                 3.7-3+b1
ii  libsystemd0                                 257.1-4
ii  libx11-6                                    2:1.8.10-2
ii  libxau6                                     1:1.0.11-1
ii  libxcb1                                     1.17.0-2+b1
ii  libxdmcp6                                   1:1.1.5-1
ii  mlterm [x-terminal-emulator]                3.9.3-1+b3
ii  polkitd                                     125-2
ii  procps                                      2:4.0.4-6
ii  systemd-sysv                                257.1-4
ii  ucf                                         3.0046
ii  x11-common                                  1:7.7+23.1
ii  x11-xserver-utils                           7.7+10+b1
ii  xiterm+thai [x-terminal-emulator]           1.10-2+b2
ii  xterm [x-terminal-emulator]                 396-1

Versions of packages gdm3 recommends:
ii  at-spi2-core                                2.54.0-1
ii  desktop-base                                13.0.0~pre1
ii  gnome-classic [x-session-manager]           47.2-1
ii  gnome-classic-xsession [x-session-manager]  47.2-1
ii  gnome-session [x-session-manager]           47.0.1-1
ii  gnome-session-xsession [x-session-manager]  47.0.1-1
ii  x11-xkb-utils                               7.7+9
ii  xserver-xephyr                              2:21.1.15-2
ii  xserver-xorg                                1:7.7+23.1
ii  zenity                                      4.0.3-1

Versions of packages gdm3 suggests:
ii  libpam-fprintd        1.94.4-1
ii  libpam-gnome-keyring  46.2-1
pn  libpam-pkcs11         <none>
pn  libpam-sss            <none>
ii  orca                  47.2-1

-- debconf information:
* shared/default-x-display-manager: gdm3
   gdm3/daemon_name: /usr/sbin/gdm3