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Sigma Tel HD Audio Card Not Working


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Hey guys,


I have a Sigmatel High Def Audio card and it shows up in system preferences as 'HD Audio Output', but no sound comes out of the internal speakers in my laptop.


Im not sure exactly what drivers it uses or anything, but from what I've read it might be the same as the STAC9220? I've tried installing different AppleHDA kexts from places but with no luck.


I'd really appreciate any help with getting my sound card to work.




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