I am having a similar problem with Intel graphics. It looks like the kernel won't go into KMS mode after a recent "apt-get dist-upgrade" -- the console stays in the standard 25x80 text mode (whereas before with KMS it would go into a much higher-res text mode), and X won't start, complaining about /dev/agpgart missing (indeed, it's not there).
I can boot into a previous kernel (2.6.31-9.29) where KMS seems to work better (the text console goes into high-res mode at bootup), and X starts, but for some reason the keyboard and mouse don't work. Not sure what else to try rolling back. -- Can't start X through gdm or startx https://bugs.launchpad.net/bugs/430031 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