I can confirm. I went through the files installed, and it looks as if the wrapper is never compiled- there is no nvidia.ko (though there is a nvidiafb.ko and a nvidia-agp.ko).
I tried to switch from a custom-compiled version to the vanilla Ubuntu version, and this came up, so it may be that some sort of on-install check is failing, thus causing the module to not compile. -- [Xubuntu Feisty] nvidia-glx from the repository doesn't work https://launchpad.net/bugs/87986 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs