Comment 4 for bug 474917

manjul, ok thanks for getting back to us. We can focus this bug report on Daniel's version of the issue.

Daniel, looking at your make.log it seems to be working successfully and it mentions it's building against 2.6.31, so it doesn't quite indicate where things failed... Was that make.log what was there before, or was that from after when you ran dpkg-reconfigure?

It is starting to sound like perhaps there is a race condition. I.e., at time of install while you're upgrading to 2.6.31, the 2.6.28 kernel is installed so DKMS builds against that. You reboot into 2.6.31 and X can't find an nvidia.ko for this version of the kernel.

So, I think this might be a dupe of bug #438398. Does that sound accurate?