I have used both hotswapping files in the installer and hotswapping in system32 for methods of applying M1. This will apply to using both the M1 and A1 methods for installing the drivers, as well as the awesome registry workaround which disables PUMA as stated by mkanet, and applies to all of the versions of the modded driver that we have available such as 2.71, 2.73 and 2.75.įor the M1 method I have tried multiple things from test signing the driver to disabling DSE. Realtek control panel and Windows though will register the existence of DDL & DTS, the driver will function normally if used in any other modes. HD Audio Codec Hardware ID (You can find this in device manager, see image below)Īnyone had any luck running this on Windows 10 insider preview? (build 10074 here) There appears to be an additional form of audio protection which causes the notorious 'Failed to play test tone' error when using DTS/DDL. HD Audio Controller Hardware ID (You can find this in device manager, see image below) OS (including whether it's 32-bit or 64-bit) Windows Vista / 7 / 8 - 32 bit and 64 bit - R2.71 A1 (Alternative method): The Dolby Digital Live / DTS Interactive output setting you have set will still be in effect, even after a reboot. You can still replace the DLL and go to Control Panel > Sound, set the output format to Dolby Digital Live / DTS Interactive, and then switch back to the original DLL, Unfortunately, usually Windows PUMA (Protected User Mode Audio) will check the digital signature of the user-mode DLL and will refuse to play ("Failed to play test tone"),Įven so, PUMA will only re-verify the DLL signature after a system restart.īecause of that, and because Dolby Digital Live / DTS Interactive settings are used regardless of the DLL being loaded, Patch the kernel to permanently enable unsigned drivers.Īlternatively, here is another modification that does not require breaking the driver signature, and instead modifies one of the user-mode DLLs, Test-sign the driver and enable Test-mode.ģ. Press F8 before each boot and select "Disable driver signature enforcement".Ģ. This is an unsigned driver, you must do one of the following for the driver to load:ġ. Windows Vista / 7 / 8 - 32 bit and 64 bit - R2.71 M1: Windows Vista / 7 / 8 - 32 bit and 64 bit - R2.73 M1: Download Realtek HD Audio Codec Driver and replace the relevant file with the file provided:
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