Just in case it helps - hope I am not off-topic
Using kernel 2.6.30-rc2 I was able to re-create the X freeze but also I found
that X will not run normally even using the default EXA acceleration. The
screen freezes, I switch to tty1 then back to tty7, it runs a few more seconds,
then freezes ag
** Attachment added: "Xorg.0.log"
http://launchpadlibrarian.net/25981918/Xorg.0.log
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[i945gm] corrupt login screen and X freeze during login when using desktop
effects (UXA bug)
https://bugs.launchpad.net/bugs/355508
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