Hi TOLEDA i have 3 rear audio port in my mobo and set up 5.1 audio with your valuable instruction with MB 5.0.2's audio kext
(That's easy. You are using the 892 edited AppleHDA from MultiBeast. Your current Audio ID is 892 for 5/6 port audio. For 3 port audio, the Audio ID is 292. The Audio ID is represented by the hex value set in dsdt/HDEF/layout-id.
Edit your dsdt/HDEF/layout-id from 0x7C, 0x03, 0x00, 0x00 to 0x24, 0x01, 0x00, 0x00. )
but now with MB 5.1.1 ALC 892 kext this edit DSDT is not working audio assertion error and no audio output on system preference. can i get back 5.1 adudi with new kext from MB 5.1.1
Expect your valuable help