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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
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<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - loading alsa-sinks including ladspa-filters fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=79280">79280</a>
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</tr>
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<th>CC</th>
<td>lennart@poettering.net
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</tr>
<tr>
<th>Assignee</th>
<td>pulseaudio-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>loading alsa-sinks including ladspa-filters fails
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>pulseaudio-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>der_papst_623ea@hotmail.com
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>alsa
</td>
</tr>
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<th>Product</th>
<td>PulseAudio
</td>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=99905" name="attach_99905" title="my asoundrc including the rl-crossover">attachment 99905</a> <a href="attachment.cgi?id=99905&action=edit" title="my asoundrc including the rl-crossover">[details]</a></span>
my asoundrc including the rl-crossover
(As requested in the faq, i mention this bug occured on Kubuntu, but it was
reproduced by an user of #alsa on Debian)
I've created a Linkwitz-Riley-crossover (4th order) in .asoundrc for upmixing
2.0->2.1 (see attached .asoundrc). The crossover works great with aplay or with
vlc when selected as alsa output device.
I can load any pcm from .asoundrc as alsa-sink, as long as there's no
ladspa-filter in the signal chain.
But when i do pactl load-module module-alsa-sink device=upmixplug, it fails
with:
I: [pulseaudio] client.c: Created 7 "Native client (UNIX socket client)"
D: [pulseaudio] protocol-native.c: Protocol version: remote 28, local 28
I: [pulseaudio] protocol-native.c: Got credentials: uid=1000 gid=1000 success=1
D: [pulseaudio] protocol-native.c: SHM possible: yes
D: [pulseaudio] protocol-native.c: Negotiated SHM: yes
D: [pulseaudio] module-augment-properties.c: Looking for .desktop file for
pactl
D: [pulseaudio] alsa-util.c: Trying upmixplug with SND_PCM_NO_AUTO_FORMAT ...
D: [pulseaudio] alsa-util.c: Managed to open upmixplug
I: [pulseaudio] (alsa-lib)pcm_params.c: Slave PCM not usable
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_any() failed: Invalid argument
D: [pulseaudio] alsa-util.c: Trying upmixplug without SND_PCM_NO_AUTO_FORMAT
...
D: [pulseaudio] alsa-util.c: Managed to open upmixplug
I: [pulseaudio] (alsa-lib)pcm_params.c: Slave PCM not usable
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_any() failed: Invalid argument
D: [pulseaudio] alsa-util.c: Trying plug:upmixplug with SND_PCM_NO_AUTO_FORMAT
...
D: [pulseaudio] alsa-util.c: Managed to open plug:upmixplug
I: [pulseaudio] (alsa-lib)pcm_params.c: Slave PCM not usable
I: [pulseaudio] (alsa-lib)pcm_params.c: Slave PCM not usable
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_any() failed: Invalid argument
D: [pulseaudio] alsa-util.c: Trying plug:upmixplug without
SND_PCM_NO_AUTO_FORMAT ...
D: [pulseaudio] alsa-util.c: Managed to open plug:upmixplug
I: [pulseaudio] (alsa-lib)pcm_params.c: Slave PCM not usable
I: [pulseaudio] (alsa-lib)pcm_params.c: Slave PCM not usable
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_any() failed: Invalid argument
I: [pulseaudio] alsa-util.c: Failed to set hardware parameters on
plug:upmixplug: Invalid argument
E: [pulseaudio] module.c: Failed to load module "module-alsa-sink" (argument:
"device=upmixplug"): initialization failed.
D: [pulseaudio] module-udev-detect.c: /dev/snd/controlC0 is accessible: yes
I: [pulseaudio] client.c: Freed 7 "pactl"
I: [pulseaudio] protocol-native.c: Connection died.
I get the same result with any other pcm from .asoundrc when a ladspa-filter is
in the signal chain.
Before trying to load a sink, i've always unloaded the soundcard (D2X) from PA
to avoid any chance of a collision.</pre>
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