Bug#520373: xorg: Xorg locks up when browsing some websites

[Frédéric van der Essen <fred.vde@yopmail.com>]

Package: xorg
Version: 1:7.3+18
Severity: critical
Justification: breaks the whole system

>From time to time, the screen becomes black and start to flicker.
The only way to get out is to press the shut down button. Then
i get the usual console, and the problem disappear for the time
it takes for the system to shut down. 

Today I found a website that can reproduce the problem quite reliably.
www.onemanga.com/Mushishi/11/06/ 
I just read something between 5 or 15 pages on this site with iceweasel 
and the screen locks up.

I tried different kernels to see if it was a kernel problem but there is
no difference.

I have a thinkpad x60s with no peripheral plugged in.

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

Kernel: Linux 2.6.28-1-686 (SMP w/2 CPU cores)
Locale: LANG=fr_BE.UTF-8, LC_CTYPE=fr_BE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages xorg depends on:
ii  gnome-terminal [x-terminal-em 2.22.3-3   The GNOME 2 terminal emulator appl
ii  libgl1-mesa-glx [libgl1]      7.0.3-7    A free implementation of the OpenG
ii  libglu1-mesa                  7.0.3-7    The OpenGL utility library (GLU)
ii  x11-apps                      7.3+4      X applications
ii  x11-session-utils             7.3+1      X session utilities
ii  x11-utils                     7.3+2+nmu1 X11 utilities
ii  x11-xfs-utils                 7.3+1      X font server utilities
ii  x11-xkb-utils                 7.4+1      X11 XKB utilities
ii  x11-xserver-utils             7.3+5      X server utilities
ii  xauth                         1:1.0.3-2  X authentication utility
ii  xfonts-100dpi                 1:1.0.0-4  100 dpi fonts for X
ii  xfonts-75dpi                  1:1.0.0-4  75 dpi fonts for X
ii  xfonts-base                   1:1.0.0-5  standard fonts for X
ii  xfonts-scalable               1:1.0.0-6  scalable fonts for X
ii  xfonts-utils                  1:7.4+1    X Window System font utility progr
ii  xinit                         1.0.9-2    X server initialisation tool
ii  xkb-data                      1.3-2      X Keyboard Extension (XKB) configu
ii  xserver-xorg                  1:7.3+18   the X.Org X server
ii  xterm [x-terminal-emulator]   235-2      X terminal emulator

Versions of packages xorg recommends:
pn  xorg-docs                     <none>     (no description available)

xorg suggests no packages.

-- no debconf information