On Wednesday 2010-05-26 14:39, Takashi Iwai wrote:
There are definitely for the onboard sound, not for HDMI.
The "SB" card has many more mixers (counting 10) and Windows XP also shows about that many for SB. But neither in Linux nor Windows does the SB card have any effect; I do have to turn the bars of the "HDMI" one.
Abnormal, well. It's (semi-)embedded, what did you expect.
Wow, then is the HDMI cable connected inside the device?
Possibly. It looks quite embedded behind the casing - no recognizable connectors, just soldering and wiring onto headers.
Anyway, "IEC958 Playback Switch" should be turned on for HDMI.
% amixer -c1 IEC958 on
Well that does nothing. As there is no PCM channel for it, there is no /dev/snd/pcmC1*, and thus mplayer - or any other progarm - won't even try to output anything.
Another issue is that HDMI audio is always through the video chip, thus the audio stuff is also controlled by the video driver. IIRC, ATI fglrx has a certain level of support for HDMI audio, but not sure about other drivers.
In other words, the Samsung 320MXn2 is a €2000 brick. Time to return it.
Thanks for your analysis, Jan