Comment 28 for bug 131577

I have an nVidia MCP55 chipset on my motherboard, and after a lot of troubleshooting, I finally found the problem. Apparently, after my upgrade to 7.10, the default option in grub for the new kernel is the -386 version instead of the -generic version. The snd-hda-intel module for -386 is in the package linux-ubuntu-modules-2.6.22-14-386. After installing that package, I was able to modprobe snd-hda-intel and get sound back.