Bug#518237: gnome-screensaver: Screen goes dark in fullscreen games

[Stephan Fuhrmann]

Package: gnome-screensaver
Version: 2.22.2-2
Severity: normal

The gnome screen blanker makes the screen darker after 10 minutes of gameplay on
Quake 3 based games, for example Enemy Territory (free download). Gameplay degrades
because to that. Darkening is turned off in energy settings of the screen
saver, but it darkens anyway.

This means the following doesn't work:
1.) Darkening the display is turned off (=never), but it happens anyway.
2.) Activity in game window (mouse, keyboard) is not detected.

I verified the effect with stopping the screensaver (problem gone) and
continuing it (problem comes again).

The problem was not there with the old xscreensaver from Debian Etch.

Unfortunately I can't come up with an easier testcase.

-- System Information:
Debian Release: 5.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.26.8 (PREEMPT)
Locale: LANG=de_DE at euro, LC_CTYPE=de_DE at euro (charmap=ISO-8859-15)
Shell: /bin/sh linked to /bin/bash

Versions of packages gnome-screensaver depends on:
ii  dbus-x11               1.2.1-5           simple interprocess messaging syst
ii  gconf2                 2.22.0-1          GNOME configuration database syste
ii  gnome-icon-theme       2.22.0-1          GNOME Desktop icon theme
ii  libatk1.0-0            1.22.0-1          The ATK accessibility toolkit
ii  libc6                  2.7-18            GNU C Library: Shared libraries
ii  libcairo2              1.6.4-7           The Cairo 2D vector graphics libra
ii  libdbus-1-3            1.2.1-5           simple interprocess messaging syst
ii  libdbus-glib-1-2       0.76-1            simple interprocess messaging syst
ii  libfontconfig1         2.6.0-3           generic font configuration library
ii  libfreetype6           2.3.7-2           FreeType 2 font engine, shared lib
ii  libgconf2-4            2.22.0-1          GNOME configuration database syste
ii  libgl1-mesa-glx [libgl 7.0.3-7           A free implementation of the OpenG
ii  libglade2-0            1:2.6.2-1         library to load .glade files at ru
ii  libglib2.0-0           2.16.6-1          The GLib library of C routines
ii  libgnome-menu2         2.22.2-4          an implementation of the freedeskt
ii  libgnomekbd2           2.22.0-1          GNOME library to manage keyboard c
ii  libgnomekbdui2         2.22.0-1          User interface library for libgnom
ii  libgtk2.0-0            2.12.11-4         The GTK+ graphical user interface 
ii  libice6                2:1.0.4-1         X11 Inter-Client Exchange library
ii  libnotify1 [libnotify1 0.4.4-3           sends desktop notifications to a n
ii  libpam0g               1.0.1-5           Pluggable Authentication Modules l
ii  libpango1.0-0          1.20.5-3          Layout and rendering of internatio
ii  libpixman-1-0          0.10.0-2          pixel-manipulation library for X a
ii  libpng12-0             1.2.27-2          PNG library - runtime
ii  libsm6                 2:1.0.3-2         X11 Session Management library
ii  libx11-6               2:1.1.5-2         X11 client-side library
ii  libxcb-render-util0    0.2.1+git1-1      utility libraries for X C Binding 
ii  libxcb-render0         1.1-1.1           X C Binding, render extension
ii  libxcb1                1.1-1.1           X C Binding
ii  libxcursor1            1:1.1.9-1         X cursor management library
ii  libxext6               2:1.0.4-1         X11 miscellaneous extension librar
ii  libxfixes3             1:4.0.3-2         X11 miscellaneous 'fixes' extensio
ii  libxi6                 2:1.1.4-1         X11 Input extension library
ii  libxinerama1           2:1.0.3-2         X11 Xinerama extension library
ii  libxklavier12          3.5-2             X Keyboard Extension high-level AP
ii  libxml2                2.6.32.dfsg-5     GNOME XML library
ii  libxrandr2             2:1.2.3-1         X11 RandR extension library
ii  libxrender1            1:0.9.4-2         X Rendering Extension client libra
ii  libxss1                1:1.1.3-1         X11 Screen Saver extension library
ii  libxxf86misc1          1:1.0.1-3         X11 XFree86 miscellaneous extensio
ii  libxxf86vm1            1:1.0.2-1         X11 XFree86 video mode extension l
ii  zlib1g                 1:1.2.3.3.dfsg-12 compression library - runtime

Versions of packages gnome-screensaver recommends:
ii  gnome-power-manager          2.22.1-4    power management tool for the GNOM
ii  libpam-gnome-keyring         2.22.3-2    PAM module to unlock the GNOME key
ii  rss-glx                      0.8.1-10+b1 Really Slick Screensavers GLX Port

Versions of packages gnome-screensaver suggests:
ii  xscreensaver-data             5.05-3     data files to be shared among scre

-- no debconf information