I have a 27" desktop LED monitor and a 42" LED TV in the same room. Both are connected through HDMI (Nvidia GTX680). Mainly I only want to use the 42" TV for gaming, and right now have the two screens setup to mirror (duplicate).
(stupid) Question: If one of the two screens is powered off, does that remove the load of the 2nd mirrored display from the GPU? It seems easiest to me right now to just mirror the displays and only have turned on the one I'm using.
Audio: I have a big problem here. For the desktop LED Monitor, I'm using the onboard Realtek analog jack to a set of desktop speakers (labeled as 'speakers' in Windows Playback Devices). For the LED TV, I'm using the HDMI digital audio. Right now that HDMI audio is set in Playback Devices (Win7) to be the default audio.
Also, even if the LED TV is powered off, the 'Speakers' are not used. I originally assumed if the TV was powered off, Windows would automatically switch to using 'Speakers' which are enabled and working. But, it doesn't work that way - Windows only seems to use the HDMI to the TV not matter what.
I'd love either both the 'Speakers' (Realtek andalog) and the TV HDMI to be working at the same time or perhaps there's some easy way to flip back and forth. The only thing I can see to do now is to open playback devices and change the default (which is a pain and for some reason when I make the HDMI not default and try to set it back as the default, it's touchy and takes a little bit to start working right).
Thanks for any advice.