To enable unsigned drivers with Windows 8 64-bit you indeed use option 7 ('Disable Driver Signature Enforcement') under 'Startup Settings'.
Check in the device manager if the Realtek Audio Controller is working properly after you have enabled this option and rebooted.
Guys, obviously you have to choose the correct output device.
Second, while it is noteworthy that some games do not properly detect 5.1 support, that's an issue with the game, and is not directly related to this mod.
It's a safe bet that unmodified drivers with Dolby Digital...
I have concluded that the "Failed to play test tone" issue is caused by PUMA (Protected User Mode Audio) detecting an unsigned user-mode DLL.
This does not happen after the DLL is replaced, and PUMA will only re-verify the DLL signature after a restart.
I have updated the original post.
Apparently due to PUMA (Protected User Mode Audio) Windows is (sometimes) making sure all user-mode audio dlls are properly signed,
I'm not sure why and when, but for now I've posted my original modification (2.71 M1), which modifies the kernel-mode driver, and does not have this issue...
If you report an issue, please include:
- OS (including whether it's 32 or 64 bit)
- HD Audio Codec Hardware ID (Device Manager > Audio, Video and Game Controllers > Realtek HD Audio Controller, right click and select properties, under the Details tab select "Hardware ID", you can use Ctrl...
Unlocked Drivers - R2.72:
Download Realtek HD Audio Codec Driver R2.72 and replace the relevant file with the file provided:
Windows Vista / 7 / 8 - 32 bit and 64 bit - R2.72 A1:
Edit: I recommend using R2.71, R2.72 seems to have some issues.
I was able to unlock the Realtek HD Audio driver, and make both Dolby Digital Live and DTS Interactive available.
(Note: DTS Interactive is marketed as DTS Connect when bundled with DTS Neo: PC)
Unlocked options you will get:
- Dolby Digital Live
- DTS Interactive
- Dolby Home Theater...