Solved: ALSA settings for HP DC7700 (Ubuntu 7.10)

Intro

I am using this small factor desktop from HP Compaq, model DC7700. After the default Ubuntu 7.10 Linux install, there are some issues with sound ports.

Symptoms

• Mic not working
• Bad quality or no sound

Solution

• With sudo, edit file /etc/modprobe.d/alsa-base
• add the following line to it:
  options snd-hda-intel model=hp position_fix=2 probe_mask=1

This allowed me to use the front mic input and front headphones jack as an output for my speakers. Skype works smoothly now.

Good luck!