HI,
I posted the same issue on Plutohome forum but it's quiet a bit now. So, maybe somebody can help me solve my problem with ALSA drivers and SPDIF in my Plutohome 2.0.0.44 installation.
I setup MD based on Asus M2N Deluxe mother board. It has built-in sound including SPDIF but by some reason only analog was recognized by system. The same sound card works fine in the core/hybrid. I suspect that this problem is related with different version of ALSA. Because on the core/hybrid ALSA is 1.0.12:
dcerouter_19548:~# cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.12.
Compiled on Mar 1 2007 for kernel 2.6.16.20-pluto-2-686.
but on MD - 1.0.11rc2:
moon153:~# cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.11rc2 (Wed Jan 04 08:57:20 2006 UTC).
I compared ALSA packages and they the same for both. So, i have no idea how to upgrade ALSA drivers on MD via apt.
Any suggestions will be highly appreciated!
The problem is related with different versions of ALSA in the package for single core processor and SMP. I changed MD architecture to 686 and rebuilt its image to have kernel for single core processor. After that the sound card was recognized correctly.