sound card not working?

"Humanity to Others" by feeblemind

I just restarted my machine (running Ubuntu 8.04 Hardy) after the latest kernel update, and my sound card driver managed to disappear ... I don't know. Anyways, this site was useful in getting it back:
Comprehensive Sound Problem Solutions Guide
The solution for me involved the following steps:

1. Try running:
   

   aplay -l

   and get the failure message:

   aplay: device_list:221: no soundcard found...

2. Run

   lspci -v

   and succeed in finding my sound card:

   00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)

3. Figure out through googling that the driver I want is snd-hda-intel.
4. Compile the ALSA driver using alsa-source:
   

   1. sudo apt-get install build-essential linux-headers-$(uname -r) module-assistant alsa-source
      sudo dpkg-reconfigure alsa-source

   2. Within the blue dialog box displayed, answer:
      
      1. Yes for ISA-PNP
      2. No for debugging
      3. Deselect "All" and select the correct driver "hda-intel".

   3. sudo module-assistant a-i alsa-source

   4. Get no errors ... good luck with that one :).
5. Load the sound card driver just compiled:

   sudo modprobe snd-hda-intel

6. Within this terminal, "aplay -l" now works.
7. Ensure that the sound card driver is loaded for all sessions by adding snd-hda-intel to the end of the file /etc/modules.