[xine-user] 5.1 channel DVD playback on an Audigy 2

[Matthew W. <ma...@al...>]

Hi everyone

I'm a bit stuck and hopefully someone can help, as I've not been able to
help myself. I have recently got an Audigy 2 Player sound card and
suitable speakers to go with it. Using ALSA 0.9.7 I have it working for
normal stereo playback (including using the rear speakers), but I
haven't been able to convince Xine that it can play DVDs in 5.1. I
realise this may be an ALSA issue, but their documentation's not all
that great, and I happen to be subscribed to this list.

Using the ALSA driver on kernel 2.4.20-gentoo-r5 on Gentoo Linux

I enabled five_lfe_channel in the Xine config. The device for 5.1
(alsa_surround51_device) is set to surround51 as I have no idea what
else I might want to set it to. When starting Xine up as

xine --verbose=9 -p dvd://

audio-related bits of the output look like this:

audio_alsa_out : supported modes are 8bit mono stereo (4-channel not
enabled in xine config) (5-channel not enabled in xine config)
5.1-channel (a/52 and DTS pass-through not enabled in xine config)
audio_out: thread created

ALSA lib pcm.c:1625:(snd_pcm_open_conf) Invalid type for PCM surround51
definition (id: surround51, value: cards.pcm.surround51)
audio_alsa_out: snd_pcm_open() failed: Invalid argument
audio_alsa_out: >>> check if another program don't already use PCM <<<
audio_out: open failed!


Nothing else is using any device nodes I can find which look like
they're even vaguely associated with the sound card, so I don't think
anything else is using PCM. The DVD, by the way, happily plays, just
without any sound (as one would expect).

Everything works fine if I turn off five_lfe_channel. Similar results
are experienced with five_channel, four_channel and a52_passthrough.

Anyone have any ideas?

Please CC me on replies, as I get daily digests and might miss replies.

Regards

Matthew Walton

Matthew Walton | ma...@al... Dying is one of the few things
that can be done as easily lying down. -- Woody Allen