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Here the kext to enable HDMI audio under 10.9.4   Thanks to Jake Lo for it.   http://www.mediafire.com/download/p84asul1cc01jo9/AppleIntelFramebufferCapri.kext.zip

Yes i use the version12.5 of ssdtprgen, where add -w 3 ? clover ? how ?   If I use the last appleacpiplaform patch, all states  ( no sound with appleHDA ) if I use appleacpiplaform, just the state

@dimak08,  In a week we will have this system in our EDP. You can install easily then. The DSDT file is included.

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add this additional patch to your config for audio under kextToPatch

<dict>
<key>Comment</key>
<string>AppleHDA-elCapitan</string>
<key>Find</key>
<data>
gxnUEQ==
</data>
<key>Name</key>
<string>AppleHDA</string>
<key>Replace</key>
<data>
AAAAAA==
</data>
</dict>
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Thanks!! And usb? How you patched it? Only works 1 usb for me!

 

 

add this additional patch to your config for audio under kextToPatch

 

<dict>
<key>Comment</key>
<string>AppleHDA-elCapitan</string>
<key>Find</key>
<data>
gxnUEQ==
</data>
<key>Name</key>
<string>AppleHDA</string>
<key>Replace</key>
<data>
AAAAAA==
</data>
</dict>
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add this additional patch to your config for audio under kextToPatch

<dict>
<key>Comment</key>
<string>AppleHDA-elCapitan</string>
<key>Find</key>
<data>
gxnUEQ==
</data>
<key>Name</key>
<string>AppleHDA</string>
<key>Replace</key>
<data>
AAAAAA==
</data>
</dict>

I haven't sound neither 

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I don't own this model, but for El Capitan, it's necessary to add that additional patch as I mentioned earlier.

I looked at the bootpack from OP. I made the modification to the config file. Please try to see if it works.

Install the dummy kext ALC270HDA from OP to /S/L/E or /L/E and repair permission

sudo chmod -Rf 755 /L*/E*

sudo chown -Rf 0:0 /L*/E*

sudo chmod -Rf 755 /S*/L*/E*

sudo chown -Rf 0:0 /S*/L*/E*

sudo touch -f /L*/E*

sudo touch -f /S*/L*/E*

sudo kextcache -Boot -U /

config.plist.zip

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