Working HDMI Audio using HD4600+GT640 SSDT Approach
Hi Guys,
Another update for you if you require HDMI.
Credit to toleda Haswell HDMI Audio
I wanted to share/add my experience of enabling HDMI audio, For those of you running 10.8.5 Mountain Lion and 10.9
.x Mavericks. I followed toleda's guide to the letter. It is very detailed and enables you to acknowledge the correct steps by using the tools attached in Post#1.
These are the exact steps I used and the information I obtained and extracted for my configuration.
Audio for this motherboard is ALC892 as you all know. In my original post I added ALC892 without DSDT as I use a Creative 2.1 audio system. This installs HDAEnabler1.kext in S/L/E. So here are my steps as follows.
1. Navigate to S/L/E and delete the HDAEnabler1.Kext. Run MultiBeast 5.5.3 for Mountain Lion. Run MultiBeast 6.0.0 for Mavericks and install ALC892 with DSDT.
2. Navigate to /Extra and open your Org.Chameleon.Boot.Plist. Add this to it
Code:
[INDENT] <key>DropSSDT</key>
<string>Yes</string>[/INDENT]
3. Download the SSDT-1 from toleda's Post#1 and put it in the /Extra folder, rename it to SSDT.aml. Close the Org.Chameleon.Boot.Plist.
4. In Mountain Lion navigate to S/L/E and locate AppleHDA.Kext, right click on it, Get Info. Version should be v2.4.7. In Mavericks apply the same procedure and the version should be v2.5.2.
Download the corresponding patch.command.zip from the thread in accordance to the Mac OS X version and AppleHDA.kext version you have.
4a. Follow procedure 4 this time navigating to AppleIntelFramebufferAzul.kext, right click Get Info. In Mountain Lion the version should be v8.16.74, in Mavericks the version should be v8.18.26
Download the corresponding patch.command.zip from the thread in accordance to the Mac OS X version and AppleIntelFramebufferAzul.kext you have.
5. Open each of the patch.command scripts entering your password when prompted.
6. Last of all Rebuild Cache and Repair Permissions with the tools from toleda's thread.
Here is a screen shot of both HDMI options available in System Preferences/Sound/Output.