I have the problem that analog PCM center_lfe Output
(and therefore also surround51 is not working on SBLive5.1.
While playback works on surround40, I can't send sound
to the center channel and get a message from libasound:
ALSA lib setup.c:343:(snd_config_get_ctl_elem_value) bad value index
As far as I understood I need to set
the combined Analog/Digital Output Jack
to analog output, which I did using
amixer sset 'SB Live Analog/Digital Output Jack' on
Simple mixer control 'SB Live Analog/Digital Output Jack',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
I could not find means for further debugging,
so I'd like to know where to look from here on.
System is Debian, gcc2.95.4, ALSA CVS from 02/26/2002
just before 0.9.0beta12 and yesterdays CVS, as well
as some earlier CVS Versions in the past weeks.
Any Ideas ?
Yours,
Steffen
-------------------------------------------------------------
sneumann@athlet:~$ ac3dec -D surround40 -4 sound.ac3
5.1 Mode 48.0 KHz 448 kbps Complete Main Audio Service
Using PCM device 'surround40'
sneumann@athlet:~$ ac3dec -D rear sound.ac3
5.1 Mode 48.0 KHz 448 kbps Complete Main Audio Service
Using PCM device 'rear'
sneumann@athlet:~$ ac3dec -D surround51 -6 sound.ac3
5.1 Mode 48.0 KHz 448 kbps Complete Main Audio Service
Using PCM device 'surround51'
ALSA lib setup.c:343:(snd_config_get_ctl_elem_value) bad value index
snd_pcm_open: Invalid argument
Output open failed
sneumann@athlet:~$ ac3dec -D center_lfe sound.ac3
5.1 Mode 48.0 KHz 448 kbps Complete Main Audio Service
Using PCM device 'center_lfe'
ALSA lib setup.c:343:(snd_config_get_ctl_elem_value) bad value index
snd_pcm_open: Invalid argument
Output open failed
-------------------------------------------------------------
Bus 0, device 13, function 0:
Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 7).
IRQ 11.
Master Capable. Latency=64. Min Gnt=2.Max Lat=20.
I/O at 0xcc00 [0xcc1f].
-------------------------------------------------------------
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