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I'm trying to pass an onboard SBx00 Azalia (Itel HDA) through to a XEN windows guest, but it doesn't seem to be working.

The device appears in the device manager as High Definition Audio Controller, but under System devices, not Sound, Video and Game Controllers as I would expect, and under Manage Audio Devices windows claims there are no audio devices.

The weird thing is that when I try the same thing with KVM, windows detects it fine and can play sound.

Can anyone think of any reason why this would be?


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closed as off topic by ewwhite, womble, Ward, Khaled, EEAA May 13 '12 at 12:25

Questions on Server Fault are expected to relate to server, networking, or related infrastructure administration within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

Turns out I was using pci-stub rather than pciback, oddly passing through other devices to xen guest went fine with pci-stub, but not this sound card. odd.

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