Bug#863866: gdm3: GDM3 possibly not reading any config files on Stretch

[Jeroen Meijer]

Package: gdm3
Version: 3.22.3-2
Severity: important

Dear Maintainer,

I have been using stretch now for several weeks. I believe that it seems GDM3
is not reading any config files I place in /var/lib/gdm3/.config.
In this directory I have placed a monitors.xml that specifies which monitor is
primary (copied from ~/.config/monitors.xml). Furthermore I configured GDM3 not
to capture a bluetooth ad2p sink (as described in the wiki:
https://wiki.debian.org/BluetoothUser/a2dp).
Now it seems that still GDM3 captures the ad2p sink (because I can't get
bluetooth to work), and the monitor I specified as primary in monitors.xml is
not made primary. Hence I believe GDM3 is not reading any config files in
/var/lib/gdm3/.config.
I checked the file permissions on the directories and files, which should be
okay; both the user and group are Debian-gdm, and files have rw permissions,
and directories rwx permissions.

I know for a fact that my bluetooth a2dp sink is working properly, because if I
use lightdm there are no issues with bluetooth.

Any ideas if I am doing something wrong, or might there be a bug somewhere in
GDM 3.22? Is there a major change between 3.22, and 3.14 (3.14 is the GDM
version in Jessie) that could explain these two issues (it worked fine in
Jessie)?

Please let me know if you require any more information.



-- System Information:
Debian Release: 9.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64
 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-3-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gdm3 depends on:
ii  accountsservice                       0.6.43-1
ii  adduser                               3.115
ii  dconf-cli                             0.26.0-2+b1
ii  dconf-gsettings-backend               0.26.0-2+b1
ii  debconf [debconf-2.0]                 1.5.61
ii  gir1.2-gdm-1.0                        3.22.3-2
ii  gnome-session [x-session-manager]     3.22.3-1
ii  gnome-session-bin                     3.22.3-1
ii  gnome-settings-daemon                 3.22.2-2
ii  gnome-shell                           3.22.3-3
ii  gnome-terminal [x-terminal-emulator]  3.22.2-1
ii  gsettings-desktop-schemas             3.22.0-1
ii  konsole [x-terminal-emulator]         4:16.12.0-4
ii  libaccountsservice0                   0.6.43-1
ii  libaudit1                             1:2.6.7-2
ii  libc6                                 2.24-10
ii  libcanberra-gtk3-0                    0.30-3
ii  libcanberra0                          0.30-3
ii  libgdk-pixbuf2.0-0                    2.36.5-2
ii  libgdm1                               3.22.3-2
ii  libglib2.0-0                          2.50.3-2
ii  libglib2.0-bin                        2.50.3-2
ii  libgtk-3-0                            3.22.11-1
ii  libkeyutils1                          1.5.9-9
ii  libpam-modules                        1.1.8-3.5
ii  libpam-runtime                        1.1.8-3.5
ii  libpam-systemd                        232-23
ii  libpam0g                              1.1.8-3.5
ii  librsvg2-common                       2.40.16-1+b1
ii  libselinux1                           2.6-3+b1
ii  libsystemd0                           232-23
ii  libwrap0                              7.6.q-26
ii  libx11-6                              2:1.6.4-3
ii  libxau6                               1:1.0.8-1
ii  libxcb1                               1.12-1
ii  libxdmcp6                             1:1.1.2-3
ii  lsb-base                              9.20161125
ii  mutter [x-window-manager]             3.22.3-2
ii  policykit-1                           0.105-17
ii  ucf                                   3.0036
ii  x11-common                            1:7.7+19
ii  x11-xserver-utils                     7.7+7+b1
ii  xterm [x-terminal-emulator]           327-2

Versions of packages gdm3 recommends:
ii  at-spi2-core    2.22.0-6
ii  desktop-base    9.0.2
ii  x11-xkb-utils   7.7+3+b1
ii  xserver-xephyr  2:1.19.2-1
ii  xserver-xorg    1:7.7+19
ii  zenity          3.22.0-1+b1

Versions of packages gdm3 suggests:
ii  gnome-orca            3.22.2-3
ii  libpam-gnome-keyring  3.20.0-3

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