Pin names recognition is better, however I get any sound output nor input with Rev8.
Plus, the patch for Headphones autoswitching were added in the "prefpane version" but appears to be removed from this one (consist in patching pin 21 & 22 to belong to as=1).
I have this error repeated in syslog right after PCMDI_PLAY messages:
Apr 23 00:02:20 Bidou kernel[0]: IOAudioStream[0x3f6e400]::clipOutputSamples(0x1f4, 0x205) - clipping function returned error: 0xe00002c7
(Codec dump attached)