No sound since upgrading to 7.1 stable (from 7.1-RELEASE)

[Alex]

Hi Guys,

I think some changes were made to the Intel HDA driver (snd_ich), it now 
detects an audio interface on my ATI radeon video adaptor (Radeon 
2400HD, RV610 chipset) and attaches itself to it. Therefore /dev/pcm0 no 
longer maps to the onboard intel HDA audio interface.

The side effect is That I have no sound.

Here is a dmesg dump:

[alex at desktop /usr/home/alex/Desktop]$ dmesg |grep hda
hdac0: <ATI RV610 High Definition Audio Controller> mem 
0xf5010000-0xf5013fff irq 17 at device 0.1 on pci1
hdac0: HDA Driver Revision: 20090131_0127
hdac0: [ITHREAD]
hdac1: <Intel 82801H High Definition Audio Controller> mem 
0xf8100000-0xf8103fff irq 22 at device 27.0 on pci0
hdac1: HDA Driver Revision: 20090131_0127
hdac1: [ITHREAD]
hdac0: HDA Codec #0: ATI R6xx HDMI
pcm0: <HDA ATI R6xx HDMI PCM #0 Digital> at cad 0 nid 1 on hdac0
hdac1: HDA Codec #2: Realtek ALC888
pcm1: <HDA Realtek ALC888 PCM #0 Analog> at cad 2 nid 1 on hdac1
pcm2: <HDA Realtek ALC888 PCM #1 Analog> at cad 2 nid 1 on hdac1
pcm3: <HDA Realtek ALC888 PCM #2 Digital> at cad 2 nid 1 on hdac1


Any ideas? Is there a way to stop the HDA driver attaching to the ATI 
device?