mormegil....

It shouldnt matter but as long as all the locations that state layout ID are 889 vs your 12 it should still work right ?

my dsdt is coded with layout-id as 79 03 00 00

and a codec-id of 89 08 EC 10

so I followed all your steps, hexedit found all 4 locations with 8508ec10 and replaced with 8908ec10

edited the two plists as show in the post.

still no go. the 1.5.7a24 AppleHDA and my dsdt file I get audio in SL. but the edited AppleHDA from a SL install does not work.

Any ideas? thanks