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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Pulseaudio doesn't list all devices profiles that are listed by alsa"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101944#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Pulseaudio doesn't list all devices profiles that are listed by alsa"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101944">bug 101944</a>
from <span class="vcard"><a class="email" href="mailto:mathojojo@gmail.com" title="Stéphane <mathojojo@gmail.com>"> <span class="fn">Stéphane</span></a>
</span></b>
<pre><span class="quote">> It looks like the S16_LE format is not supported by the card. Maybe
> PulseAudio is failing due to wrong format too? I would expect PulseAudio to
> switch to the correct format automatically, but maybe PA is not as smart as
> I think.
>
> What does "aplay -Dfront:Ultra -f cd /dev/zero" print? I expect it to fail
> due to an unavailable format, and list the formats that are available.</span >
aplay -Dfront:Ultra -f cd /dev/zero
Lecture données brutes '/dev/zero' : Signed 16 bit Little Endian, Fréquence
44100 Hz, Stéréo
aplay: set_params:1233: Ce format d'échantillonage n'est pas disponible
Available formats:
- S24_3LE
Testing with :
"aplay -Dfront:Ultra -f S24_3LE -c7 -r48000 /dev/zero"
Lecture données brutes '/dev/zero' : Signed 24 bit Little Endian in 3bytes,
Fréquence 48000 Hz, 7 Canaux
aplay: set_params:1239: Nombre de canaux non disponible
(the last line mean : Number of channels unavailable)
AND
Testing with :
"aplay -Dsurround71:Ultra -f S24_3LE -c7 -r48000 /dev/zero"
Lecture données brutes '/dev/zero' : Signed 24 bit Little Endian in 3bytes,
Fréquence 48000 Hz, 7 Canaux
No error in this case.
So the problem might come from an undefined number of channels for all
profiles, but surround71.
Is it possible to change that ? where ? (Pulseaudio, alsa, alsa driver
snd-audio-usb ???).
I have the feeling the problem could be easy to resolve, but I may be wrong :).
Anyway, thank you for the help.</pre>
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