I am experiecing almost the same problem with my setup. It seems like it's entering a deeper sleep state after it went to sleep. I'm not able to wake from that state. If I force shutdown my computer using the power button it will not turn on anymore. To get my machine back to running state, I...
This new optimized AppleHDA worked for me. I also tried doing the AppleHDA customization which also worked. I was now able to setup the Analog 7.1 Surround Sound. Cheers! :headbang:
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