From comment #2 sounds like this issue is not seen with default grub
settings, so closing as fixed.
** Changed in: xorg-server (Ubuntu)
Status: Confirmed = Fix Released
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X11 crash and go back to gdm when seeing any video
https://bugs.launchpad.net/bugs/508700
You received this bug
** Tags added: crash
** Changed in: xorg-server (Ubuntu)
Status: New = Confirmed
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X11 crash and go back to gdm when seeing any video
https://bugs.launchpad.net/bugs/508700
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Bugs, which is subscribed to Ubuntu.
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Removed modset=0 in grub.
And a new kernel from Lucid
Now it boot to graphic and I can watch movies.
produi$ uname -a
Linux produit-laptop 2.6.311-generic #15-Ubuntu SMP Tue Jan 19 18:16:27 UTC
2010 i686 GNU/Linux
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X11 crash and go back to gdm when seeing any video
** Attachment added: BootDmesg.txt
http://launchpadlibrarian.net/37997761/BootDmesg.txt
** Attachment added: CurrentDmesg.txt
http://launchpadlibrarian.net/37997762/CurrentDmesg.txt
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/37997763/Dependencies.txt
**