Bug#884141: gdm3 fails to start, no log info

[Jan Medlock]

Package: gdm3
Version: 3.26.2.1-2
Severity: normal

Dear Maintainer,
gdm3 fails to start.  It worked fine until several weeks ago, when
some update broke things.  (I've tried rolling back a few packages
with no success.)  There is very little information in the logs.  Any
suggestions for debugging this would be appreciated.


$ systemctl status gdm
● gdm.service - GNOME Display Manager
   Loaded: loaded (/lib/systemd/system/gdm.service; static; vendor preset: enabl
   Active: inactive (dead) since Mon 2017-12-11 13:43:28 PST; 26min ago
 Main PID: 3610 (code=exited, status=0/SUCCESS)
    Tasks: 0 (limit: 6144)
   CGroup: /system.slice/gdm.service

Dec 11 13:05:38 barney systemd[1]: Starting GNOME Display Manager...
Dec 11 13:05:38 barney systemd[1]: Started GNOME Display Manager.
Dec 11 13:43:28 barney systemd[1]: Stopping GNOME Display Manager...
Dec 11 13:43:28 barney gdm3[3610]: GLib: g_variant_new_string: assertion 'string
Dec 11 13:43:28 barney gdm3[3610]: GLib: g_hash_table_find: assertion 'version =
Dec 11 13:43:28 barney systemd[1]: Stopped GNOME Display Manager.


No log is created in /var/lib/gdm3.


Thanks,
Jan Medlock


-- System Information:
Debian Release: buster/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.14.0-1-amd64 (SMP w/40 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gdm3 depends on:
ii  accountsservice                       0.6.45-1
ii  adduser                               3.116
ii  dconf-cli                             0.26.1-1
ii  dconf-gsettings-backend               0.26.1-1
ii  debconf [debconf-2.0]                 1.5.65
ii  gir1.2-gdm-1.0                        3.26.2.1-2
ii  gnome-session [x-session-manager]     3.26.1-1
ii  gnome-session-bin                     3.26.1-1
ii  gnome-settings-daemon                 3.26.2-1
ii  gnome-shell                           3.26.2-1
ii  gnome-terminal [x-terminal-emulator]  3.26.2-1
ii  gsettings-desktop-schemas             3.24.1-1
ii  libaccountsservice0                   0.6.45-1
ii  libaudit1                             1:2.8.1-2
ii  libc6                                 2.25-3
ii  libcanberra-gtk3-0                    0.30-5
ii  libcanberra0                          0.30-5
ii  libgdk-pixbuf2.0-0                    2.36.11-1
ii  libgdm1                               3.26.2.1-2
ii  libglib2.0-0                          2.54.2-1
ii  libglib2.0-bin                        2.54.2-1
ii  libgtk-3-0                            3.22.26-2
ii  libkeyutils1                          1.5.9-9.2
ii  libpam-modules                        1.1.8-3.6
ii  libpam-runtime                        1.1.8-3.6
ii  libpam-systemd                        235-3
ii  libpam0g                              1.1.8-3.6
ii  librsvg2-common                       2.40.18-2
ii  libselinux1                           2.7-2
ii  libsystemd0                           235-3
ii  libwrap0                              7.6.q-27
ii  libx11-6                              2:1.6.4-3
ii  libxau6                               1:1.0.8-1+b2
ii  libxcb1                               1.12-1
ii  libxdmcp6                             1:1.1.2-3
ii  lsb-base                              9.20170808
ii  metacity [x-window-manager]           1:3.26.0-1
ii  mutter [x-window-manager]             3.26.2-1
ii  policykit-1                           0.105-18
ii  ucf                                   3.0036
ii  x11-common                            1:7.7+19
ii  x11-xserver-utils                     7.7+7+b1
ii  xterm [x-terminal-emulator]           330-1

Versions of packages gdm3 recommends:
ii  at-spi2-core    2.26.2-2
ii  desktop-base    9.0.5
ii  x11-xkb-utils   7.7+3+b1
ii  xserver-xephyr  2:1.19.5-1
ii  xserver-xorg    1:7.7+19
ii  zenity          3.26.0-1

Versions of packages gdm3 suggests:
ii  gnome-orca            3.26.0-2
pn  libpam-fprintd        <none>
ii  libpam-gnome-keyring  3.20.1-1

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