The kernel does not detect the built-in AC'97 sound on my nForce4 motherboard. kernel-2.6.14-1.1777_FC5.x86_64 and kernel-2.6.14-1.1776_FC5.x86_64 both have the problem. kernel-2.6.14-1.1773_FC5.x86_64 and earlier worked fine. All FC4 kernels have worked.
Created attachment 122517 [details] Log file from running system-config-soundcard
The problem is fixed with kernel-2.6.14-1.1783_FC5.x86_64. The snd-intel8x0 recognizes the CK804 AC'97 controller and the sound works like it used to.
ah, another casualty of the bad acpi update. thanks for the update. it's been reverted in current builds, and upstream notified so that hopefully it'll get fixed before it arrives in Linus' tree.