Originally Posted by hasienda
Well this might be nothing more than a starting point, but you may make use of the gradually improving auto-detect features and try to refresh your old xserver configuration with
$> dpkg-reconfigure xserver-xorg
It usually solves a lot of issues. The fonts and much more was moved, so the warnings above could be fixed by searching and entering correct paths in /etc/X11/xorg.conf very easily.
BTW: You may wish to ask back. Well, since I live in Saxony, you could write a private message in German as well ...
I tried dpkg-reconfigure to no avail.
After browsing a lot of similar bug reports, I followed the suggestion
to disable acceleration:
and have had no crashes since then (i.e. for about 2 days).
For reference, it was also mentioned that switching to a different
acceleration mode might be a workaround, i.e.
Option "AccelMethod" "XAA"
but I haven't tried this myself.
The bug seems to be fixed in debian squeeze or sid, but upgrading
xserver-xorg-video-intel had too many dependencies to be an option