Hi,
It works!
Solution (in OpenElec 4.2.0; settings on other distros would be similar): * Create custom asound.state in /storage/.config/ with the following contents: http://sprunge.us/SiHH (this state-file will, among other things, unmute the appropriate mixer controls, set proper output formats, ...).
* Load the above state file with the following command:
alsactl nrestore 0 -f /storage/.config/asound.state (replace the "0" with the card-number corresponding to CK804 on your system)
You may want to add this command to a custom autostart.sh in /storage/.config/ so the state is restored on every boot.
* Create intel8x0.conf in /storage/.config/modprobe.d/ with the following contents:
options snd-intel8x0 spdif_aclink=1 (I am told that this above setting depends on the specific motherboard, so this may not work for everyone: it does work on my ASUS A8N-SLI Deluxe)
This was the final setting that solved the issue for me. I did try this setting before, but it seems that some sources on the Internet had this mis-written as "options snd-intel-8x0 spdif_aclink=1" (notice the extra dash).
* In XBMC, select the SPDIF out as both the audio-device AND the passthrough device.
I wanted to post the solution that worked (in my case) here so others may be able to benefit from my experience.
Thank you very much for your input Raymond: really appreciated!
Bye! _____ *Gilles Hemberg* /gilles.hemberg@gmail.com/ On 04/10/2014 07:07, Raymond Yau wrote:
Command tried:
speaker-test -c2 -r 48000 -D iec958:CARD=CK804,DEV=0Still no sound coming through AVR...
For the sake of completeness, I provide a new alsa-info.sh
output:http://sprunge.us/ZWLF(I blacklisted the snd_hda_intel this time just to be on the safe side).
The git-link below
(http://git.alsa-project.org/?p=alsa-lib.git;a=blob;f=src/conf/cards/NFORCE.c...) seems to point to the .conf for nForce2/3; min is a nForce4 (don't know if nForce4 is supposed to use this same .conf).
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pc...
Either use spdif over ac-link or you have to find out how to use nforce4 secondary spdif output
http://www.nvidia.com/page/pg_20041014863476.html
AUDIO
AC ’97 2.3 compliant interface
Supports 2, 4, 6, or 8-channel audio Dual AC-Link: supports up to two codecs Dual S/PDIF: supports two simultaneous digital outputs; handles stereo PCM or AC-3 output 16-bit or 20-bit stereo, 48kHz output and 16-bit input streams across AC-Link 24-bit, 96kHz stereo output on the secondary S/PDIF output
Sorry to bump in like this, but I was advised to submit a
bug-report for the ALSA-drivers on my HTPC: no sound comes through out of my AVR when I select the digital output through SPDIF (TOSLINK).
The relevant parts of my HTPC are as follows: * CPU: Athlon64 X2 3800+ * Motherboard: ASUS A8N-SLI Deluxe motherboard (BIOS 1805)
NForce4 with CK804 sound (relying on a Realtek ALC850 chip)
* RAM: 2x 512 MB DDR-400 * GPU: nVidia Geforce GT240 (which carries a HDMI port anduses the snd-
* Receiver: Marantz SR7500 (supporting both Dolby Digital 5.1and DTS decoding), connected to motherboard's SPDIF TOSLINK port (optical) + JBL 5.1 speaker-set
* OpenElec 4.2.0: Kernel 3.16.3, Alsa 1.0.28Symptoms: Speaker-test does not produce any sound. Command used is as follows:
speaker-test -c2 -r 48000 -D hw:0,2No sound either from other applications (such as XBMC 13.2).
SPDIF worked flawlessly on the exact same hardware & connections
using Win7/XBMC.
Sound does come through the SPDIF when I use hw:0,0 (= analog
device).
Things tried (none working): * Blacklisting snd-hda-intel (= HDMI from my GPU) to make
sure CK804 is the only sound chip visible.
* amixer set 'IEC958 Playback AC97-SPSA' Playback 100% unmutehttp://www.realtek.com.tw/products/productsView.aspx?Langid=1&PFid=31&am...
Take a look at alc850 datasheet
Simple mixer control 'IEC958 Playback AC97-SPSA',0 Capabilities: volume volume-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 3 Mono: 0 [0%]
This is not volume control, it is SPDIF out Slot Assignment in ac97
link