Nvidia GTX 970
Gigabyte Z77-DS3H
i5 3570k (igp: HD4000)
I've just installed Yosemite 10.10 (GM3) with Chameleon bootloader (tested with clover too).
video card (resolution and cuda) works good !
I can use it with and without the intel HD4000 integrated (discrete or not -> activation/desactivation in the bios).
BUT
No native sound working for alc887, neither nvidia HDMI audio
So i've tested injections with chameleon 2201 boot.plist, toleda realtek alcxxx, enabler methods, dsdt, ...
I can get Alc887 work ok
but no hdmi audio for nvidia.
[10de : ofbb] [196e : 1131] Nvidia / GM204 High Definition Audio Controler
[vendor:device] [sub-vendor : sub-device] (Device Name)
I know other cards get the GM204 chipset.
Maybe anyone have modified Nvidia kext audio files to accept this chip? or other good idees? =)