Bug#593853: mutter version 2.29.0-3 stops working without damage extension

[Frank Engler]

Package: mutter
Version: 2.29.0-3
Severity: important

Mutter used to work without damage extension. This is not the case since
version 2.29.0-3. After logging in at gdm I'll get a black screen with
only a mouse cursor on it.

.xsession-errors:
/etc/gdm/Xsession: Beginning session setup...
GNOME_KEYRING_CONTROL=/tmp/keyring-AABP0l
SSH_AUTH_SOCK=/tmp/keyring-AABP0l/ssh
GNOME_KEYRING_PID=7303
GNOME_KEYRING_CONTROL=/tmp/keyring-AABP0l
SSH_AUTH_SOCK=/tmp/keyring-AABP0l/ssh
GNOME_KEYRING_CONTROL=/tmp/keyring-AABP0l
SSH_AUTH_SOCK=/tmp/keyring-AABP0l/ssh
Window manager warning: Missing damage extension required for compositing--sm-config-prefix: unknown option

Usage: gnubiff [OPTION...]

General command line options:
  -c, --config=file     Configuration file to use
  -n, --noconfigure     Skip the configuration process
      --nogui           Start gnubiff without GUI
      --systemtray      Put gnubiff's icon into the system tray
  -v, --version         Print version information and exit

Help options:
  -?, --help            Show this help message
      --usage           Display brief usage message

(polkit-gnome-authentication-agent-1:7335): GLib-GObject-WARNING **: cannot register existing type `_PolkitError'

(polkit-gnome-authentication-agent-1:7335): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
Daemon already running, exiting...
Unable to open desktop file epiphany.desktop for panel launcher
Unable to open desktop file evolution.desktop for panel launcher

** (nautilus:7322): WARNING **: Can not get _NET_WORKAREA

** (nautilus:7322): WARNING **: Can not determine workarea, guessing at layout

Versions of packages mutter depends on:
ii  libatk1.0-0             1.30.0-1         The ATK accessibility toolkit
ii  libc6                   2.11.2-2         Embedded GNU C Library: Shared lib
ii  libcairo2               1.8.10-4         The Cairo 2D vector graphics libra
ii  libclutter-1.0-0        1.2.12-3         Open GL based interactive canvas l
ii  libffi5                 3.0.9-2          Foreign Function Interface library
ii  libfontconfig1          2.8.0-2.1        generic font configuration library
ii  libfreetype6            2.4.2-1          FreeType 2 font engine, shared lib
ii  libgconf2-4             2.28.1-3         GNOME configuration database syste
ii  libgirepository1.0-0    0.6.14-1+b1      Library for handling GObject intro
ii  libgl1-mesa-glx [libgl1 7.7.1-4          A free implementation of the OpenG
ii  libglib2.0-0            2.24.1-1         The GLib library of C routines
ii  libgtk2.0-0             2.20.1-1         The GTK+ graphical user interface 
ii  libice6                 2:1.0.6-1        X11 Inter-Client Exchange library
ii  libjson-glib-1.0-0      0.10.2-2         GLib JSON manipulation library
ii  libmutter-private0      2.29.0-3         library for the Mutter window mana
ii  libpango1.0-0           1.28.1-1         Layout and rendering of internatio
ii  libsm6                  2:1.1.1-1        X11 Session Management library
ii  libstartup-notification 0.10-1           library for program launch feedbac
ii  libx11-6                2:1.3.3-3        X11 client-side library
ii  libxcomposite1          1:0.4.2-1        X11 Composite extension library
ii  libxcursor1             1:1.1.10-2       X cursor management library
ii  libxdamage1             1:1.1.3-1        X11 damaged region extension libra
ii  libxext6                2:1.1.2-1        X11 miscellaneous extension librar
ii  libxfixes3              1:4.0.5-1        X11 miscellaneous 'fixes' extensio
ii  libxinerama1            2:1.1-3          X11 Xinerama extension library
ii  libxrandr2              2:1.3.0-3        X11 RandR extension library
ii  libxrender1             1:0.9.6-1        X Rendering Extension client libra
ii  mutter-common           2.29.0-3         shared files for the Mutter window
ii  zenity                  2.30.0-1         Display graphical dialog boxes fro
ii  zlib1g                  1:1.2.3.4.dfsg-3 compression library - runtime

Versions of packages mutter recommends:
ii  gnome-session [x-session-mana 2.30.2-1   The GNOME Session Manager - GNOME 

Versions of packages mutter suggests:
ii  gnome-control-center          1:2.30.1-2 utilities to configure the GNOME d
ii  gnome-themes                  2.30.2-1   official themes for the GNOME desk
pn  xdg-user-dirs                 <none>     (no description available)

-- no debconf information