#624: need proper support for Terratec EWS88-MT (ice1712)
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Reporter: aelschuring | Owner: lennart
Type: defect | Status: new
Milestone: | Component: module-alsa-*
Resolution: | Keywords: ews88 profile-set
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Comment(by aelschuring):
Replying to [comment:24 lennart]:
> https://bugzilla.redhat.com/show_bug.cgi?id=499435
Thanks for the link. Of course, I only started to read that one after I
had searched the Alsa-devel mailing archives :|
With the patch from
http://thread.gmane.org/gmane.linux.alsa.devel/59481/focus=59672 , I can
get ALSA to offer a true two-channel front device, and have pulseaudio use
it succesfully:
{{{I: source.c: Created source 0 "alsa_output.pci-0000_00_0c.0.analog-
front-out.monitor" with sample spec s16le 2ch 44100Hz and channel map
front-left,front-right}}}
The problem is - and that is very much the same issue as debated in the
thread above - that the ICE1712 cards basically offer five separate stereo
output channels, and six separate stereo input channels. That's a multi-
channel configuration that does not fit in the whole "surround
sound"-oriented multi-channel definition, and I'm not sure how we should
want those channels to be exposed. Compounding the issue is that not all
cards based on this chip have the same number of outputs...
It is fairly trivial to create a patch to alsa-lib that at least fixes the
front: device, but I'm not sure how to address other configurations,
especially when considering the fact that two-channel cards based on this
chip also exist.
--
Ticket URL: <http://pulseaudio.org/ticket/624#comment:26>
PulseAudio <http://pulseaudio.org/>
The PulseAudio Sound Server
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