Bug#704144: gdm3: gdm hang if the autologin user don't exist

[Fernando Toledo]

Package: gdm3
Version: 3.4.1-6
Severity: normal

If you have a user settings for autologin enabled and this user is deleted or
you rename it, The gdm daemon hang at startup.
Gdm still in black screen . I known that the workaround is editing the
daemon.conf, fix the autologin settings and restart t.
But i think that gdm, must display the login prompt instead on hang if user
don't exist.




-- System Information:
Debian Release: 7.0
  APT prefers testing
  APT policy: (650, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.2.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=es_AR.UTF-8, LC_CTYPE=es_AR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gdm3 depends on:
ii  accountsservice                       0.6.21-8
ii  adduser                               3.113+nmu3
ii  dconf-gsettings-backend               0.12.1-3
ii  dconf-tools                           0.12.1-3
ii  debconf [debconf-2.0]                 1.5.49
ii  dpkg                                  1.16.9
ii  gir1.2-freedesktop                    1.32.1-1
ii  gir1.2-glib-2.0                       1.32.1-1
ii  gnome-session-bin                     3.4.2.1-3
ii  gnome-settings-daemon                 3.4.2+git20121218.7c1322-3
ii  gnome-terminal [x-terminal-emulator]  3.4.1.1-2
ii  gsettings-desktop-schemas             3.4.2-3
ii  libaccountsservice0                   0.6.21-8
ii  libatk1.0-0                           2.4.0-2
ii  libattr1                              1:2.4.46-8
ii  libaudit0                             1:1.7.18-1.1
ii  libc6                                 2.13-38
ii  libcairo-gobject2                     1.12.2-3
ii  libcairo2                             1.12.2-3
ii  libcanberra-gtk3-0                    0.28-6
ii  libcanberra0                          0.28-6
ii  libdbus-1-3                           1.6.8-1
ii  libdbus-glib-1-2                      0.100.2-1
ii  libfontconfig1                        2.9.0-7.1
ii  libgdk-pixbuf2.0-0                    2.26.1-1
ii  libglib2.0-0                          2.33.12+really2.32.4-5
ii  libglib2.0-bin                        2.33.12+really2.32.4-5
ii  libgtk-3-0                            3.4.2-6
ii  libpam-modules                        1.1.3-7.1
ii  libpam-runtime                        1.1.3-7.1
ii  libpam0g                              1.1.3-7.1
ii  libpango1.0-0                         1.30.0-1
ii  librsvg2-common                       2.36.1-1
ii  libselinux1                           2.1.9-5
ii  libupower-glib1                       0.9.17-1
ii  libwrap0                              7.6.q-24
ii  libx11-6                              2:1.5.0-1
ii  libxau6                               1:1.0.7-1
ii  libxdmcp6                             1:1.1.1-1
ii  libxklavier16                         5.2.1-1
ii  libxrandr2                            2:1.3.2-2
ii  lsb-base                              4.1+Debian8
ii  marco [x-window-manager]              1.4.1-1+wheezy
ii  mate-terminal [x-terminal-emulator]   1.4.0-1+wheezy
ii  metacity [x-window-manager]           1:2.34.3-4
ii  mutter [x-window-manager]             3.4.1-5
ii  openbox [x-window-manager]            3.5.0-6
ii  policykit-1-gnome                     0.105-2
ii  upower                                0.9.17-1
ii  x11-common                            1:7.7+2
ii  x11-xserver-utils                     7.7~3
ii  xfce4-session [x-session-manager]     4.8.3-3
ii  xfwm4 [x-window-manager]              4.8.3-2

Versions of packages gdm3 recommends:
ii  at-spi2-core               2.5.3-2
ii  desktop-base               7.0.3
ii  gnome-icon-theme           3.4.0-2
ii  gnome-icon-theme-symbolic  3.4.0-2
ii  x11-xkb-utils              7.7~1
ii  xserver-xephyr             2:1.12.4-5
ii  xserver-xorg               1:7.7+2
ii  zenity                     3.4.0-2

Versions of packages gdm3 suggests:
ii  gnome-orca            3.4.2-2
pn  gnome-shell           <none>
pn  gok                   <none>
ii  libpam-gnome-keyring  3.4.1-5

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