Realtek ALC 887 Audio problem on Mountain Lion 1.8.2 [ASUS p8z77]

[newlife229]

Hi guys, hope is all going well for ya!

I've a problem with the REALTEK ALC887, tried several time with:

-Multi Beast 5.2.1 : with and without DSDT kext ALC887/889b
-KextBeast: AppleHDA.kext for p8z77-v
-Tried install with 3 scratch installation of Mountain Lion 1.8.2


My build is:

Asus P8z77-v Lx2
I5 3470
8Gb Corsair Vengeance 1600Mhz
Al 750watt

I can't get it working.
Thank's in advance.

 

[toleda]

I've a problem with the REALTEK ALC887, tried several time with:

Try MultiBeast 5.2.1 or newer - Select/Drivers & Bootloaders/Drivers/Audio/Realtek ALC8xx/Without DSDT/ALC887 Current.
If no audio , see ML: MultiBeast - No Audio/Solutions and Problem Reporting

 

[newlife229]

I have this but can't find:

Enter/Search Box/IOHDACodecDevice
Select IOHDACodecDevice@1B,0

View attachment IOreg.zip

can u help?

 

[toleda]

I have this but can't find:

Enter/Search Box/IOHDACodecDevice
Select IOHDACodecDevice@1B,0

A screenshot is not helpful. Attach a copy of IOReg.

 

[newlife229]

Ok i made a copy of my IOreg

View attachment IOregLog.zip

 

[toleda]

Ok i made a copy of my IOreg

What BIOS? HD Audio enabled in BIOS?
No codec, see DPCIManager 1.5 Open Beta, attach a screenshot of Status.

 

[newlife229]

Screenshot

BIOS: 0305

HDAudio: Enabled in Bios

Have to upgrade my bios??

Btw, have always to boot with -x or boot will stuck on grey apple logo loading
This is my boot with -v



A simple question, have to make or use a DSDT with this config or not? Because i can't find the right one and read that other people with Ivy Bridge don't need DSDT.

 

[toleda]

Btw, have always to boot with -x or boot will stuck on grey apple logo loading

Waste of time; -x disables audio. Off topic, fix your boot problem.