I am experiencing exactly the same situation with Intrepid AMD64 on Dell XPS M1330. From my experience, the crash seems to happen when using applications that need rendering (my last crash was when using firefox), although Xorg's log does not reveal anything.
** Attachment added: "Xorg.0.log.old" http://launchpadlibrarian.net/18655510/Xorg.0.log.old -- Intrepid system freeze on dell XPS 1330 https://bugs.launchpad.net/bugs/277391 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs