So thanks to rankrotten I finally got the right HDEF code into the DSDT - I've updated the attachment in post #33 with the new DSDT file. That new DSDT, in combination with tonymac's Legacy889HDA.kext and this new patched AppleHDA.kext from 10.6.4 will give you *fully functional* audio, including encoded digital 5.1!
update to 10.6.4, then replace existing AppleHDA with this patched one in S/L/E, put Legacy889HDA in E/E, repair permissions and rebuild kext caches, then reboot and enjoy a movie...
I tried using your two kexts here and making your HDEF changes to my DSDT, but still no joy. Since I'm rocking the i7-930 and NVidia card, I tried to just swap in your DSDT, but when I booted up, all my disks were orange! I can't remember if my sound was working or not.
So, I've got no sound from the board, but I'm getting by with my USB soundsticks.
Anyway, here's my DSDT if you want to compare. I do have some really cool USB stuff in there that's got my iPad/Phone charging on the USB ports. Maybe we can get ours merged to some sort of Super DSDT.
howboutjoe_i7_930_ga_x58a_ud3r_r2_dsdt.zip 20.3KB 80 downloads
Is your box sleeping yet?