Hey AlSA-users!
I'm not able to get Hardware-AC3-Decoding work, with my SB Audigy Gamer.
I start mplayer with
mplayer -ao alsa9 -ac hwac3 -dvd 1 -vo null
and following error-message appears:
ALSA lib pcm_hw.c:866:(snd_pcm_hw_open) open /dev/snd/pcmC0D3p failed:
Kein passendes Gerät gefunden [<-in english: couldn't find matching
device]
Same with ac3_passthrough in xine or "cat /dev/snd/pcmC0D3p".
"Normal"(analogue) Sound (with XMMS, eg) works well (with both ALSA and
OSS-Emulation).
Google finds some similiar problems, but no solution. AFAIK it's
supported.
ALSA version: 0.9.0rc7-1 from Debian/unstable
(but problem exists since rc2)
lsmod says:
--
snd-pcm-oss 37316 0
snd-mixer-oss 11512 0 [snd-pcm-oss]
agpgart 12944 3 (autoclean)
ipt_MASQUERADE 1208 2 (autoclean)
snd-emu10k1 57808 1
snd-pcm 55680 0 [snd-pcm-oss snd-emu10k1]
snd-timer 10760 0 [snd-pcm]
snd-rawmidi 12896 0 [snd-emu10k1]
snd-ac97-codec 28072 0 [snd-emu10k1]
snd-util-mem 1248 0 [snd-emu10k1]
snd-seq-device 3988 0 [snd-emu10k1 snd-rawmidi]
snd-hwdep 3648 0 [snd-emu10k1]
snd 29772 1 [snd-pcm-oss snd-mixer-os snd-emu10k1
\\ snd-pcm snd-timer snd-rawmidi snd-ac97-codec snd-util-mem \\
snd-seq-device snd-hwdep]
soundcore 3652 8 [snd]
--
ls -l /dev/snd says:
crw-rw---- 1 root audio 116, 0 1970-01-01 01:00 controlC0
crw-rw---- 1 root audio 116, 32 1970-01-01 01:00 controlC1
crw-rw---- 1 root audio 116, 64 1970-01-01 01:00 controlC2
crw-rw---- 1 root audio 116, 96 1970-01-01 01:00 controlC3
crw-rw---- 1 root audio 116, 4 1970-01-01 01:00 hwC0D0
crw-rw---- 1 root audio 116, 8 1970-01-01 01:00 midiC0D0
crw-rw---- 1 root audio 116, 9 1970-01-01 01:00 midiC0D1
crw-rw---- 1 root audio 116, 24 1970-01-01 01:00 pcmC0D0c
crw-rw---- 1 root audio 116, 16 1970-01-01 01:00 pcmC0D0p
crw-rw---- 1 root audio 116, 25 1970-01-01 01:00 pcmC0D1c
crw-rw---- 1 root audio 116, 26 1970-01-01 01:00 pcmC0D2c
crw-rw---- 1 root audio 116, 19 1970-01-01 01:00 pcmC0D3p
crw-rw---- 1 root audio 116, 33 1970-01-01 01:00 timer
cat /etc/modutils/alsa says:
--
alias char-major-116 snd
alias char-major-14 soundcore
options snd major=116 cards_limit=4 device_mode=0660 device_gid=29
device_uid=0
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias snd-card-0 snd-emu10k1
alias sound-slot-0 snd-card-0
options snd-emu10k1 index=0 extin=0x0fc3 extout=0x1f0f
--
^^^^^^^^^^
I tried to fix the problem by changing the extin/out settings as
described in the Documentation, but it didn't change anything. I dön't
believe that causes the prob, neither I think it has to do something
with the mixer settings, but I'm not seveloper, so correct me if I'm
wrong.
If it helps: Im using devfs.
BTW: The Card is connect to an analog 5.1 box system. I hope I
understood the use of SPDiFF as way to pass the raw data to the
soundcard which decodes it into six analogue channels.
hoping for help, Robert Künnemann
--
Robert Künnemann <[EMAIL PROTECTED]>
--
Robert Künnemann <[EMAIL PROTECTED]>
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