Bug#767803: gdm3: After update Gdm3 displays "Oh No! Something has gone wrong"

[Frederic MASSOT]

Package: gdm3
Version: 3.14.1-1
Severity: important

Dear Maintainer,

I use Gdm3 and Mate.

After the update of my testing (I usually done once a week), at the next boot Gdm3 crach and displays:

Oh No! Something has gone wrong

Gdm3 has been updated from 3.14.0-1 to 3.14.1-1.

To start a graphical session I installed Lightdm and I configured as the default display manager.

In Lightdm if I chose a Gnome session, I return to the screen lightdm but without the interface, I have only the wallpaper.
By choosing a Mate session, the desktop starts normally.

In the file .xsession-errors:

Xsession: X session started for fredo at dimanche 2 novembre 2014, 11:08:55 (UTC+0100)
localuser:fredo being added to access control list

** (gnome-session-check-accelerated:1714): WARNING **: Couldn't register with accessibility bus: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
Xlib:  extension "GLX" missing on display ":0".
Xlib:  extension "GLX" missing on display ":0".
Xlib:  extension "GLX" missing on display ":0".
gnome-session-is-accelerated: No hardware 3D support.
Xlib:  extension "GLX" missing on display ":0".
gnome-session-check-accelerated: Helper exited with code 256

** (gnome-session-check-accelerated:1716): WARNING **: Couldn't register with accessibility bus: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
Xlib:  extension "GLX" missing on display ":0".
Xlib:  extension "GLX" missing on display ":0".
Xlib:  extension "GLX" missing on display ":0".
gnome-session-is-accelerated: No hardware 3D support.
Xlib:  extension "GLX" missing on display ":0".
gnome-session-check-accelerated: Helper exited with code 256

** (process:1660): WARNING **: software acceleration check failed: Child process exited with code 1
XIO:  fatal IO error 11 (Ressource temporairement non disponible) on X server ":0"
      after 40 requests (40 known processed) with 1 events remaining.




Regards.


-- System Information:
Debian Release: jessie/sid
  APT prefers testing-updates
  APT policy: (500, 'testing-updates'), (500, 'stable-updates'), (500, 'testing'), (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 3.16-3-686-pae (SMP w/1 CPU core)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gdm3 depends on:
ii  accountsservice                              0.6.37-3+b1
ii  adduser                                      3.113+nmu3
ii  dconf-cli                                    0.22.0-1
ii  dconf-gsettings-backend                      0.22.0-1
ii  debconf [debconf-2.0]                        1.5.53
ii  eterm [x-terminal-emulator]                  0.9.6-1
ii  gir1.2-gdm3                                  3.14.1-1
ii  gnome-session [x-session-manager]            3.14.0-2
ii  gnome-session-bin                            3.14.0-2
ii  gnome-session-flashback [x-session-manager]  3.8.1-6
ii  gnome-settings-daemon                        3.14.1-1
ii  gnome-shell                                  3.14.1-1
ii  gnome-terminal [x-terminal-emulator]         3.14.1-1
ii  gsettings-desktop-schemas                    3.14.1-1
ii  libaccountsservice0                          0.6.37-3+b1
ii  libaudit1                                    1:2.4-1
ii  libc6                                        2.19-12
ii  libcanberra-gtk3-0                           0.30-2.1
ii  libcanberra0                                 0.30-2.1
ii  libgdk-pixbuf2.0-0                           2.31.1-2+b1
ii  libgdm1                                      3.14.1-1
ii  libglib2.0-0                                 2.42.0-2
ii  libglib2.0-bin                               2.42.0-2
ii  libgtk-3-0                                   3.14.3-1
ii  libpam-modules                               1.1.8-3.1
ii  libpam-runtime                               1.1.8-3.1
ii  libpam-systemd                               215-5+b1
ii  libpam0g                                     1.1.8-3.1
ii  librsvg2-common                              2.40.5-1
ii  libselinux1                                  2.3-2
ii  libsystemd0                                  215-5+b1
ii  libwrap0                                     7.6.q-25
ii  libx11-6                                     2:1.6.2-3
ii  libxau6                                      1:1.0.8-1
ii  libxdmcp6                                    1:1.1.1-1
ii  libxrandr2                                   2:1.4.2-1
ii  lsb-base                                     4.1+Debian13+nmu1
ii  marco [x-window-manager]                     1.8.2+dfsg1-1
ii  mate-session-manager [x-session-manager]     1.8.1-4+b1
ii  mate-terminal [x-terminal-emulator]          1.8.0+dfsg1-3
ii  metacity [x-window-manager]                  1:3.12.0-2
ii  mutter [x-window-manager]                    3.14.1-2
ii  policykit-1                                  0.105-7
ii  rxvt [x-terminal-emulator]                   1:2.7.10-6
ii  ucf                                          3.0030
ii  x11-common                                   1:7.7+7
ii  x11-xserver-utils                            7.7+3
ii  xterm [x-terminal-emulator]                  312-1

Versions of packages gdm3 recommends:
ii  at-spi2-core               2.14.0-1
ii  desktop-base               7.0.3
ii  gnome-icon-theme           3.12.0-1
ii  gnome-icon-theme-symbolic  3.12.0-1
ii  x11-xkb-utils              7.7+1
ii  xserver-xephyr             2:1.16.1-1
ii  xserver-xorg               1:7.7+7
ii  zenity                     3.14.0-1

Versions of packages gdm3 suggests:
ii  gnome-orca            3.14.0-1
ii  libpam-gnome-keyring  3.14.0-1+b1

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