On Tue, Apr 27, 2010 at 10:54 AM, Paul Hartman <paul.hartman+gen...@gmail.com> wrote: > On Tue, Apr 27, 2010 at 10:33 AM, Denis <denis....@gmail.com> wrote: >> I have an optical out on my on-board Intel Hi Def audio controller >> (also an Intel motherboard) and wanted to route the optical output to >> my receiver, so I could play internet radio on my home audio system. >> I got everything plugged in, but the receiver didn't pick up any >> signal (I made sure all the right settings are selected on the >> receiver). >> >> So my question... Is optical output supported in ALSA and the driver >> for Intel High Definition audio controller? Do I have to compile with >> any specific flags to get it working? > > Check the file /usr/src/linux/Documentation/sound/alsa/HD-Audio-Models.txt > and maybe you need to specify which model of HD-Audio chip your're > using to enable the extra ports. I've never had much success with > "auto" actually autodetecting the proper set-up.
Also, the digital output may show up as a different playback device in ALSA, so you may need to specify this in whatever program you're using. For example: $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC889 Analog [ALC889 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 1: ALC889 Digital [ALC889 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0
