This may be a more complicated question so I will also shout out to @wendell
I am using Windows 7 and a GTX780
I just upgraded my speaker system, but there wasn't much for higher end 5.1 self powered systems so I went with an AV receiver with 5.1 (unpowered speakers).
-I use HDMI to send the audio signal to the receiver.
-I also use dual link dvi to send the video signal to the monitor. I do this because it is an Asus VG278H 3D monitor (no display port). Dual link dvi is the only way to get 120hz (HDMI 1.4 only does 48hz I believe).
Now the receiver I have has a GUI so I tried to use the HDMI out to connect to the monitor. The problem is: the Nvidia surround feature detects the monitor through the HDMI video pass through, and runs it as two monitors and strangeness ensues. There does not seem to be a way to completely disable a monitor.
I tried running through the integrated graphics port and disabling its display adapter (the display and audio adapters are listed as two different entities in device manager) . Unfortunately disabling the video adapter also disabled the audio.
Is there anyway to disable nvidia surround (multi monitor support)? Or any hacks I could do to stop this from happening?