Comment 12 for bug 194816

The module should be in the package: http://packages.ubuntu.com/hardy/amd64/linux-ubuntu-modules-2.6.24-12-generic/filelist (there is a snd-hda-intel.ko file there). Does "modprobe -l|grep snd-hda-intel" output something?

Note: "sudo modprobe -r snd_hda_intel" tries to unload the module, so it will tell that it is not found if it isn't loaded at that time. You should try the "sudo modprobe snd_hda_intel" command and see what kernel messages are generated in order to check.