As far as I can tell this is fixed with the following set of packages:
libdrm-intel1 2.4.15-1
xserver-xorg-video-intel 2:2.9.1-2
linux-image-2.6-686 2.6.32+23
linux-image-2.6.30-2-686 2.6.30-8
linux-image-2.6.32-trunk-686 2.6.32-5
So this bug can be closed.
--
Francois Gouget <fgouget@free.fr> http://fgouget.free.fr/
Linux: the choice of a GNU generation