Help with ALSA on new computer

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I got a new computer (Zotac HD-ID40) ION2

I have installed alsa 1.0.24 on Centos 5.6 x86_64.

Not sure why it registers 2 audio devices either.

here is info:

lspci | grep Audio

00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
03:00.1 Audio device: nVidia Corporation High Definition Audio Controller (rev a1)

lspci -n
00:1b.0 0403: 8086:27d8 (rev 02)
03:00.0 0300: 10de:0a64 (rev a2)
03:00.1 0403: 10de:0be3 (rev a1)

lspci -v
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
	Subsystem: ZOTAC International (MCO) Ltd. Device a140
	Flags: bus master, fast devsel, latency 0, IRQ 10
	Memory at fe9fc000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [50] Power Management version 2
	Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+
	Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
	Kernel driver in use: HDA Intel
	Kernel modules: snd-hda-intel

03:00.0 VGA compatible controller: nVidia Corporation GT218 [ION] (rev a2) (prog-if 00 [VGA controller])
	Subsystem: ZOTAC International (MCO) Ltd. Device 3100
	Flags: bus master, fast devsel, latency 0, IRQ 5
	Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
	Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Memory at ce000000 (64-bit, prefetchable) [size=32M]
	I/O ports at ec00 [size=128]
	Expansion ROM at fcf80000 [disabled] [size=512K]
	Capabilities: [60] Power Management version 3
	Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
	Capabilities: [78] Express Endpoint, MSI 00
	Capabilities: [b4] Vendor Specific Information: Len=14 <?>
	Kernel driver in use: nvidia
	Kernel modules: nvidiafb, nvidia

03:00.1 Audio device: nVidia Corporation High Definition Audio Controller (rev a1)
	Subsystem: ZOTAC International (MCO) Ltd. Device 3100
	Flags: bus master, fast devsel, latency 0, IRQ 5
	Memory at fcf7c000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: [60] Power Management version 3
	Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
	Capabilities: [78] Express Endpoint, MSI 00
	Kernel driver in use: HDA Intel
	Kernel modules: snd-hda-intel

How can I get sound over HDMI working on this computer?
Analog sound out works fine.
I have edited the /etc/asound.conf to point to the device 1,3 which is the HDMI audio.

Thanks,

Jerry


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