Is it possible to send surround sound through motherboard hdmi? Basically the surround sound system cannot be hooked up to the tv so I have two hdmi ports on the back of my case the motherboard one and my r9 290 port, the r9 290 is being used for display so I suppose I couldn't use it for sound is there any way to also activate the motherboard hdmi? Could I run the display though the motherboard hdmi instead of graphics card then plug graphics card hdmi into audio receiver?