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I can't tell for sure, but if you look at iFixit's picture of the PCB, you can see a tiny chip all the way on the right side that they didn't bother identifying.Hard Drive Enclosures & Cases. it looks like there might be a Cirrus Logic controller on board.

But it may need to be updated for Windows 8.īest bet might be to see if there are PC manufacturers that use the same controller, and if so, see if any of those guys are able to get audio to work in Windows 8.Įdit: Actually. However, if there is a proper windows driver for the Intel controller, I don't see why we can't install that. That indicates that perhaps my theory is correct in that Apple maps the onboard audio as a Cirrus Logic controller through the CSM. What I can tell you is that when I enumerate the PCI devices in OSX, 1023:4206 does not appear at all - but 8086:1E20 does. All it said was that it was an "Intel 6-series Chipset" I ran the chipset identification utility in windows PE. I tried deleting all the entries of hdaudbus.inf but TrustedInstaller won't let me delete the copy in WinSxS.Īny ideas? Anyone else have this working? Any chance this is an Intel C216 audio controller and if so, why would the realtek drivers be included or get installed at all? I could try to manually install the driver but there are 42 inf files in the Realtek High Definition Audio Controller file I downloaded, none of which are called hdaudbus.inf. and the website from which I downloaded them lists them as 2.70 ( )Īutoupdate won't replace the driver. but theRtlUpd64.exe file property details list the product version as 2,8,0,6 with a modified date of. Name=Realtek High Definition Audio Driver I notice that the usetup.iss file from the realtek folder that book camp leaves lists the following entry. Reinstalling the realtek driver from the bootcamp disk (doesn't take) Removing and deleting the current driver (always reinstalls) The non-functional has the following properties.

I think the functional is for the HDMI audio. In device manager I get one working "High Definition Audio Controller" and one non functional. I can't get audio working on my rMBP on Windows 8 RTM 圆4 after installing bootcamp drivers. EDIT: The thread below seems to be only an issue for EFI installs of Windows 8 RTM.