Eventually I also picked up a Sweex SC015 card. (These are readily available in Europe at the time of writing.)
cmpci0 at pci1 dev 2 function 0 "C-Media Electronics CMI8738/C3DX Audio" rev 0x10: ivec 0x7d5 audio1 at cmpci0 opl at cmpci0 not configured mpu at cmpci0 not configured Playing stereo audio at 44.1 and 48 kHz over S/PDIF works. The relevant mixer knob is this: playback.mode=dac [ dac spdif ] Set to "spdif" for S/PDIF output, "dac" (default) for analog output. This particular card also has a two-pin "CD S/PDIF" header. If you have an optical drive with a two-pin "digital audio" output, you can connect it to the card, and then enable a by-pass mode where audio from the drive is directly output to S/PDIF without the CPU having to read any data. The mixer controls involved are these: spdif.input=spdin1 [ spdin1 spdin2 spdout ] spdif.output=playback [ playback spdin ] Set spdif.input=spdin2 to select the CD input and spdif.output=spdin to direct it to the card's S/PDIF output. Strangely, AC3/DTS pass-through does *not* work. Neither for normal playback with MPlayer, nor for a DTS CD using the S/PDIF by-pass. My A/V receiver just remains silent or reports a decoding error. -- Christian "naddy" Weisgerber na...@mips.inka.de
