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Audio ALC888 and 5.1 channels , patch AppleHDA.kext

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I'm have problem in Mountain Lion with sound on ALC888 in EP41-UD3L and not run audio 5.1. Only 2 channel works - screen photo file I add to this post. Now use this file





In Lion, my sound was working perfectly using only AppleHDA + Plataform.xml + layout888.xml all added with HDA Wizard (link to this files:)






I test more metod:


For Mountain Lion I make this (and not works for me - is't audio):


Posted 29 July 2012 - 04:38 PM



You need to rename layout888.xml to layout12.xml and edit inside layout12.xml to be as following





get perl script from zlib.pl.zip (by Revogirl, R.I.P.)



perl zlib.pl deflate layout12.xml > layout12.xml.zlib




perl zlib.pl deflate Platforms.xml > Platforms.xml.zlib


copy *.xml.zlib to /System/Library/Extensions/AppleHDA.kext/Contents/Resources/






And link to oryginal (not patched) AppleHDA.kext for Mountain Lion :





Please help me. Thanks.


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