I have a laptop - DELL Studio 1773, but I'm pretty sure the model does not matter. One of it's features I love most is the fact it has TWO headphone outputs. This means Ubuntu can use them to output 4.0 sound.
But 4.0 is not enough for me. I would like to get 5.1 surround output.
At first sight it seemed impossible for me, but it turned out it is technically possible. The laptop has two audio outputs and one audio input. If the input could somehow output sound, I would get 5.1 surround sound, right?
The laptop had Windows Vista preinstalled. And it had a preinstalled app for tuning my sound's parameters (volume, basic filters etc.). I found out this app is able to output 5.1 sound, using the Line In as output (to be precise: it used it for center/sub channels)!
That leads to conclusion it IS somehow possible to get the Line In to work as output. How can I do this in Ubuntu?
As the preinstalled application proved, the soundcard is capable of outputting audio through what seemed to be an input inlet. But in Ubuntu it behaves only as input.
Now, my question is:
Is there any way I can change this, and force my system to do similar trick and output 5.1 audio using 2 headphone outlets, and 1 audio input inlet?