An Infinite Number of Monkeys Dec 14, 2012 @ 6:28am
Select a separate display and audio output device for Big Picture mode...
I'm using an Nvidia GTX 560 and have a monitor connected to the first DVI port and an HDTV connected to the HDMI output. I would like to be able to set the HDMI screen as the default display _AND_ set the HDMI audio device as the default audio output for big picture mode so that I can turn on BP, sit down with my controller and play games just as I would if it were a console attached to the TV, but still sit at the computer with keyboard and mouse (and the default audio output for the system) the rest of the time. I suspect this is a request which has or will come up for BP mode on more than just Linux systems.
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clsdaniel Dec 16, 2012 @ 3:12am 
This is sort of posible right now, with pulseaudio you can select which output do you prefer for certain type of application, I switch to HDMI when conecting my laptop to an external monitor.

The tricky part is video, you could get the game running fullscreen on one screen but I think perfromance will greatly suffer, there is still many reports of problem with multi-head configurations.

Steam cannot do much in this case as most of the software needed to support such mode is outside steam, it is drivers, it is pulseaudio, xorg server, window manager, etc. I'm sure it sounds simple but there is a ton of software involved, i don't think this can or should be managed by steam.
An Infinite Number of Monkeys Dec 17, 2012 @ 5:47am 
Actually, applications can readily choose which output they want to use for gstreamer audio (which includes pulseaudio). The system choice is only choosing the default. I don't want to get too complicated, but, when doing this sort of thing for audio work, I'd usually use Jack to set up the connections. Jack's not actually necessary, however. All that would really be needed is a call added to Big Picture to change the default audio when it launches.
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