I've been trying to figure out how to get more than two channels of audio with, no success. What I read, "it should just work". Now, "audioctl play.channels=2" on boot. Whatever I try to change the value to, I get 'audioctl: set failed: Invalid argument' even if I try to set it to 2. It does seem to change the value, but as soon as I start playback it's back to play.channels=2. Any advice, please?
The cards I've tried with: emu0 at pci2 dev 3 function 0 "Creative Labs SoundBlaster Live" rev 0x07: irq 11 ac97: codec id 0x83847608 (SigmaTel STAC9708/11) ac97: codec features 18 bit DAC, 18 bit ADC, SigmaTel 3D audio0 at emu0 azalia0 at pci0 dev 6 function 1 "NVIDIA MCP55 HD Audio" rev 0xa2: irq 15 azalia0: host: High Definition Audio rev. 1.0 azalia0: codec: 0x04x/0x10ec (rev. 0.2), HDA version 1.0 audio0 at azalia0