Bug#446906: gnome-screensaver does not grab keyboard input

[Giacomo Montagner]

Package: gnome-screensaver
Version: 2.18.2-1
Severity: important

When I lock screen the password input box is immediately displayed, but
there is no cursor in the text input field. Writing anything on keyboard
produces no change. 
I tried this: 
- opened konsole
- locked screen (using shortcut ctrl+alt+ins I configured before)
- instead of blanking screen and display the password input box only on
  keyboard/mouse event, gnome-screensaver displayed the input box
  immediately. In the text input field there was no cursor (neither
  blinking nor static, none at all)
- I WROTE SOMETHING ON THE KEYBOARD, nothing happened apparently (static
  image with the password input box on the screen, mouse arrow working
  as it might) - this is important
- I waited 30s, the input box disappeared and reappeared immediately,
  this time the cursor was present and blinking
- I entered my password and hit enter, the screen unlocked
- surprise! What I wrote on the keyboard before the input box flashed
  ant the cursor reappeared was there on konsole. 

During the first 30s: 
- the keyboard input is not grabbed by gnome-screensaver but from the 
  application which had focus when the screen was locked
- the mouse input is grabbed correctly, but clicking on any button on
  the box does nothing, except showing the button-pression animation

Independently from the actions taken, after 30s the situation recovers
automatically and the input box works again, allowing password typing
and screen unlocking. 


-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.22-2-686 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages gnome-screensaver depends on:
ii  dbus                    1.1.1-3          simple interprocess messaging syst
ii  gconf2                  2.20.0-1         GNOME configuration database syste
ii  gnome-icon-theme        2.20.0-1         GNOME Desktop icon theme
ii  libart-2.0-2            2.3.19-3         Library of functions for 2D graphi
ii  libatk1.0-0             1.20.0-1         The ATK accessibility toolkit
ii  libbonobo2-0            2.20.0-1         Bonobo CORBA interfaces library
ii  libbonoboui2-0          2.18.0-5         The Bonobo UI library
ii  libc6                   2.6.1-1+b1       GNU C Library: Shared libraries
ii  libcairo2               1.4.10-1         The Cairo 2D vector graphics libra
ii  libdbus-1-3             1.1.1-3          simple interprocess messaging syst
ii  libdbus-glib-1-2        0.74-1           simple interprocess messaging syst
ii  libexif12               0.6.16-2         library to parse EXIF files
ii  libfontconfig1          2.4.2-1.2        generic font configuration library
ii  libfreetype6            2.3.5-1+b1       FreeType 2 font engine, shared lib
ii  libgconf2-4             2.20.0-1         GNOME configuration database syste
ii  libgl1-mesa-glx [libgl1 7.0.1-2          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            2.14.0-2         The GLib library of C routines
ii  libgnome-keyring0       0.8.1-2          GNOME keyring services library
ii  libgnome-menu2          2.20.0-2         an implementation of the freedeskt
ii  libgnome2-0             2.20.0-1         The GNOME 2 library - runtime file
ii  libgnomecanvas2-0       2.14.0-3         A powerful object-oriented display
ii  libgnomekbd1            2.18.2-1         GNOME library to manage keyboard c
ii  libgnomekbdui1          2.18.2-1         User interface library for libgnom
ii  libgnomeui-0            2.18.1-2         The GNOME 2 libraries (User Interf
ii  libgnomevfs2-0          1:2.20.0-1       GNOME Virtual File System (runtime
ii  libgtk2.0-0             2.10.13-1        The GTK+ graphical user interface 
ii  libice6                 2:1.0.4-1        X11 Inter-Client Exchange library
ii  liborbit2               1:2.14.7-0.1     libraries for ORBit2 - a CORBA ORB
ii  libpam0g                0.99.7.1-5       Pluggable Authentication Modules l
ii  libpango1.0-0           1.18.2-1         Layout and rendering of internatio
ii  libpng12-0              1.2.15~beta5-2   PNG library - runtime
ii  libpopt0                1.10-3           lib for parsing cmdline parameters
ii  libsm6                  2:1.0.3-1+b1     X11 Session Management library
ii  libx11-6                2:1.0.3-7        X11 client-side library
ii  libxcursor1             1:1.1.9-1        X cursor management library
ii  libxext6                1:1.0.3-2        X11 miscellaneous extension librar
ii  libxfixes3              1:4.0.3-2        X11 miscellaneous 'fixes' extensio
ii  libxi6                  2:1.1.3-1        X11 Input extension library
ii  libxinerama1            1:1.0.2-1        X11 Xinerama extension library
ii  libxklavier11           3.3-1            X Keyboard Extension high-level AP
ii  libxml2                 2.6.30.dfsg-2    GNOME XML library
ii  libxrandr2              2:1.2.2-1        X11 RandR extension library
ii  libxrender1             1:0.9.4-1        X Rendering Extension client libra
ii  libxss1                 1:1.1.2-1        X11 Screen Saver extension library
ii  libxxf86misc1           1:1.0.1-2        X11 XFree86 miscellaneous extensio
ii  libxxf86vm1             1:1.0.1-2        X11 XFree86 video mode extension l
ii  zlib1g                  1:1.2.3.3.dfsg-5 compression library - runtime

Versions of packages gnome-screensaver recommends:
ii  gnome-power-manager           2.18.3-1   frontend for gnome-powermanager
pn  rss-glx                       <none>     (no description available)
pn  xscreensaver-gl               <none>     (no description available)

-- no debconf information