(08-22-2015, 01:49 PM)torreydale link Wrote: This link might be a start. https://mylinuxramblings.wordpress.com/2...-surround/
Following this advice, and knowing that my headphone jack is labeled as Rear speakers in ALSA applications, I edited /etc/pulse/daemon.conf , uncommented default-sample-channels = 2 and default-channel-map = front-left,front-right , and renamed this last part to rear-left-,rear-right . Then I configured PulseAudio volume control to Stereo output. It is still using the front speakers (green jack). I'll keep checking on this blog post, but I don't know what else to test at the moment.
The ideal setting would be that when I select Stereo output in PA, it outputs to Rear speakers instead of using Front speakers as default. Then every application should output Stereo only instead of using all the other channels when selecting 4.0 or 5.1 sound.