Bug#724731: cannot login via gdm3

[Chris Burdess]

Dear Maintainer,

gdm3 3.8.4 in Debian sid appears to be broken. The login screen will
start and present a list of users. Clicking on a user will show the
password entry field and you can type a password into it. However
subsequently clicking the Sign In button or pressing Return simply
causes the Sign In button to be grayed out and no further action is taken.

gdm3 logs are attached

(stuff copied from reportbug)


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.11-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB, LC_CTYPE=en_GB (charmap=UTF-8) (ignored: LC_ALL set
to en_GB.UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gdm3 depends on:
ii  accountsservice                              0.6.34-2
ii  adduser                                      3.113+nmu3
ii  dconf-cli                                    0.18.0-1
ii  dconf-gsettings-backend                      0.18.0-1
ii  debconf [debconf-2.0]                        1.5.51
ii  gir1.2-gdm3                                  3.8.4-2
ii  gnome-session [x-session-manager]            3.8.4-2
ii  gnome-session-bin                            3.8.4-2
ii  gnome-session-flashback [x-session-manager]  3.6.2-2
ii  gnome-settings-daemon                        3.8.5-2
ii  gnome-shell                                  3.8.4-4
ii  gnome-terminal [x-terminal-emulator]         3.8.4-1
ii  gsettings-desktop-schemas                    3.8.2-2
ii  libaccountsservice0                          0.6.34-2
ii  libatk1.0-0                                  2.10.0-2
ii  libaudit1                                    1:2.3.2-2
ii  libc6                                        2.17-93
ii  libcairo-gobject2                            1.12.16-2
ii  libcairo2                                    1.12.16-2
ii  libcanberra-gtk3-0                           0.30-2
ii  libcanberra0                                 0.30-2
ii  libgdk-pixbuf2.0-0                           2.28.2-1
ii  libgdm1                                      3.8.4-2
ii  libglib2.0-0                                 2.36.4-1
ii  libglib2.0-bin                               2.36.4-1
ii  libgtk-3-0                                   3.8.5-1
ii  libpam-modules                               1.1.3-9
ii  libpam-runtime                               1.1.3-9
ii  libpam0g                                     1.1.3-9
ii  libpango-1.0-0                               1.32.5-5+b1
ii  libpangocairo-1.0-0                          1.32.5-5+b1
ii  librsvg2-common                              2.36.4-2
ii  libselinux1                                  2.1.13-3
ii  libwrap0                                     7.6.q-24
ii  libx11-6                                     2:1.6.2-1
ii  libxau6                                      1:1.0.8-1
ii  libxdmcp6                                    1:1.1.1-1
ii  libxrandr2                                   2:1.4.1-1
ii  lsb-base                                     4.1+Debian12
ii  metacity [x-window-manager]                  1:2.34.13-1
ii  policykit-1-gnome                            0.105-2
ii  upower                                       0.9.22-1
ii  x11-common                                   1:7.7+4
ii  x11-xserver-utils                            7.7+1
ii  xfce4-session [x-session-manager]            4.10.1-3
ii  xfwm4 [x-window-manager]                     4.10.1-2
ii  xterm [x-terminal-emulator]                  297-1

Versions of packages gdm3 recommends:
ii  at-spi2-core               2.10.0-1
ii  desktop-base               7.0.3
ii  gnome-icon-theme           3.8.3-1
ii  gnome-icon-theme-symbolic  3.8.2.2-2
ii  x11-xkb-utils              7.7~1
ii  xserver-xephyr             2:1.14.3-4
ii  xserver-xorg               1:7.7+4
ii  zenity                     3.8.0-1

Versions of packages gdm3 suggests:
ii  gnome-orca            3.4.2-2
ii  libpam-gnome-keyring  3.8.2-2

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

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