I want to attach a Sony 5.1 surround sytem to my mini-atx mainboard PC.
The only means of outputting 5.1 is the HDMI port of my Nvidia graphics card. The only input of 5.1 audio on the Sony system is through SPDIF.
I have a display attached over DVI and a TV attached over HDMI. The only way I see how this would work is to split the audio off the HDMI signal and convert it to SPDIF for the sony system.
This works somehow but only when the second screen (the TV) is enabled in Windows. This is not optimal as permanently mirroring the image to TV and display reduces the performance in some games. I want to be able to disable the image output of the HDMI output without disabling the sound output.
Is this possible?