Stereo sound to all 5.1 speakers
I have a digital output from my linux box to my amp. I can play dvd in 5.1 surround perfectly and also stereo to amp fine using amarok with alsa and the device "plug:surround51:0". What I would like to do is use the two rear channels when playing my music. I have googled and see you can edit /etc/asound.conf file with the following:
I then change my stereo device in Amarok to read "plug:dup" but nothing. Amarok does not complain and the it appears to play ok, but silence.
I also have run "speaker-test -D dup -c6" it runs without complaint but no sound ! if i run it with -c2 it work fine and I get sound, very strange
Any suggestions of where I am going wrong would be great.