Hi Master Chief,
Firstly thankyou enormously for your guides. It's helped me greatly! I have a GA-965P-S3 and have followed your verbs/pinconfigs guide. I have a comprehensive listing of details about my ALC883 chip now.
I'm currently trying to configure a LegacyHDA for Snow Leopard. Pathmaps and Layout ID's are the hurdles I'm currently jumping. I'd be happy to share my findings on this thread.
Enjoy your holiday...i'm due for one too I think

Regards,
Slither2008.
[Edit] Was having a look at the sound assertion error you posted on this guide.
Jun 17 11:48:46 Chief kernel[0]: Sound assertion "0 != widget->setUnsolicited ( true )" failed in "/SourceCache/AppleHDA/AppleHDA-168.1.3/AppleHDA/AppleHDACodecGeneric.cpp" at line 855 goto handlerIn English this reads to me that the AppleHDA code writes a sound assertion failure to log when it fails to set the Pin Widget as Unsolicited. On success it returns 0 for true and anything other than that is considered as a failure (as defined in the AppleHDA code I'm assuming).
I'm not an expert but this is what I gathered from reading some of the Intel HDA specko. On p145 It mentions the GPIO Unsolicited Enable Mask. I'm taking a stab in the dark here but my guess is that the method setUnsolicted(boolean) was called when the controller was initialising a particular Stream. It's purpose is to read in the MuteGPIO set in the plist and enable the GPIO register as an Unsolicited. It possibly enables the ability to mute the Pin Complex widget through the AppleHDA driver????.
The GPIO (General Input Output Widget) was in a reset state (i.e. value = 0 or 0000h) due to the cold reset. The bitmask provided in the plist was invalid thus the GPIO Enable Mask register returned 0 to show that it had not been woken/enabled and the AppleHDA handled the error through the assertion?
Maybe I'm covering old ground...
[Edit 2] I should have continued reading...7.3.3.14 confirmed my theory more or less...lolol