Bug#785782: ran into the same issue here.

[shirish शिरीष]

Dear Maintainer,
I ran into the same issue. I had to revert to lightdm due to the issues above.

I have saved the journal but instead of sharing it fully, would like
to share only the excerpts. Are there any keyword or keywords that you
could share that I could grep and share with you the results.

Look forward to know more.

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (990, 'testing'), (100, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.2.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_IN, LC_CTYPE=en_IN (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gdm3 depends on:
ii  accountsservice                              0.6.40-3
ii  adduser                                      3.113+nmu3
ii  dconf-cli                                    0.24.0-2
ii  dconf-gsettings-backend                      0.24.0-2
ii  debconf [debconf-2.0]                        1.5.57
ii  gir1.2-gdm3                                  3.18.0-2
ii  gnome-session-bin                            3.18.0-1+b1
ii  gnome-session-flashback [x-session-manager]  3.18.1-1
ii  gnome-settings-daemon                        3.18.1-1+b1
ii  gnome-shell                                  3.18.0-1
ii  gnome-terminal [x-terminal-emulator]         3.18.1-1
ii  gsettings-desktop-schemas                    3.18.0-1
ii  guake [x-terminal-emulator]                  0.8.0-1
ii  libaccountsservice0                          0.6.40-3
ii  libaudit1                                    1:2.4.4-4
ii  libc6                                        2.21-0experimental1
ii  libcanberra-gtk3-0                           0.30-2.1
ii  libcanberra0                                 0.30-2.1
ii  libgdk-pixbuf2.0-0                           2.32.1-1
ii  libgdm1                                      3.18.0-2
ii  libglib2.0-0                                 2.46.1-1
ii  libglib2.0-bin                               2.46.1-1
ii  libgtk-3-0                                   3.18.2-1
ii  libpam-modules                               1.1.8-3.1
ii  libpam-runtime                               1.1.8-3.1
ii  libpam-systemd                               227-2
ii  libpam0g                                     1.1.8-3.1
ii  librsvg2-common                              2.40.11-1
ii  libselinux1                                  2.3-2+b1
ii  libsystemd0                                  227-2
ii  libwrap0                                     7.6.q-25
ii  libx11-6                                     2:1.6.3-1
ii  libxau6                                      1:1.0.8-1
ii  libxdmcp6                                    1:1.1.2-1
ii  lsb-base                                     9.20150917
ii  lxde-common [x-session-manager]              0.99.0-2
ii  lxsession [x-session-manager]                0.5.1-2
ii  lxterminal [x-terminal-emulator]             0.2.0-1
ii  marco [x-window-manager]                     1.10.2-1
ii  mate-session-manager [x-session-manager]     1.10.2-3
ii  mate-terminal [x-terminal-emulator]          1.10.1+gfdl1-2
ii  metacity [x-window-manager]                  1:3.18.1-1
ii  mutter [x-window-manager]                    3.18.0-1+b1
ii  openbox [x-window-manager]                   3.6.1-1
ii  policykit-1                                  0.105-12
ii  ucf                                          3.0030
ii  x11-common                                   1:7.7+9
ii  x11-xserver-utils                            7.7+5
ii  xterm [x-terminal-emulator]                  320-1

Versions of packages gdm3 recommends:
ii  at-spi2-core               2.18.0-1
ii  desktop-base               8.0.2
ii  gnome-icon-theme           3.12.0-1
ii  gnome-icon-theme-symbolic  3.12.0-1
ii  x11-xkb-utils              7.7+2
ii  xserver-xephyr             2:1.17.2-3
ii  xserver-xorg               1:7.7+12
ii  zenity                     3.18.0-1

Versions of packages gdm3 suggests:
ii  gnome-orca            3.18.0-1
ii  libpam-gnome-keyring  3.16.0-4

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


-- 
          Regards,
          Shirish Agarwal  शिरीष अग्रवाल
  My quotes in this email licensed under CC 3.0
http://creativecommons.org/licenses/by-nc/3.0/
http://flossexperiences.wordpress.com
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