No Multichannel sound when using TV - Dirt 2

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Joined
22 Jan 2008
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1,311
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King's Lynn, Norfolk
I'm trying to play Dirt 2 with the sound being played through the Amp, and the video through the TV.

Problem is that when I use the TV for the video, either the Windows Audio or Rapture3D software is preventing multi-channel audio.
I have tested it using the laptop display, and passing the audio to the amping, which works with 7.1 audio. I have also tried duplicating the displays, but that only results in stereo being passed to the amp.

I've also tried some older graphics + HDMI audio drivers, and different audio drivers for my soundcard (just in case it was a problem with that), but nothing.

It seems very strange that it can only pass multichannel when the laptop's display is being used to display the game.

Anybody got a fix for this?
 
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