Comment 6 for bug 449762

I have the exact same issue. My chip is a 82801H. There is no sound device listed when the issue happens. An alsa force-reload always works to get sound back. Sometimes the sound will even keep working for a reboot or two, but eventually it loses my sound device again and I have to do another alsa force-reload. This issue did NOT occur with 9.10, 9.04, and 8.10 on my system. It has occurred on my system after an upgrade from 9.04, and from a fresh install from the 9.10 beta cd.