GNU bug report logs - #28393
Sound output broken in Audacity

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Mark H Weaver <mhw <at> netris.org>
To: bug-guix <at> gnu.org
Subject: Sound output broken in Audacity
Date: Fri, 08 Sep 2017 12:24:30 -0400

Sound output is broken in Audacity on my Thinkpad X200 running GuixSD,
at least within GNOME 3 (I haven't tried it anywhere else).  It worked
in the past.  I see the following error messages in Audacity's
stdout/stderr:

(audacity:893): Gtk-WARNING **: Unable to locate theme engine in module_path: "adwaita",

(audacity:893): Gtk-WARNING **: Unable to locate theme engine in module_path: "adwaita",
ALSA lib pcm.c:2501:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2501:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2501:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_route.c:867:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:867:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:867:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:867:(find_matching_chmap) Found no matching channel map
Expression 'stream->playback.pcm' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 4628
Expression 'stream->playback.pcm' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 4628
Expression 'stream->playback.pcm' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 4628

       Mark

Message #8 received at 28393 <at> debbugs.gnu.org (full text, mbox):

From: Leo Famulari <leo <at> famulari.name>
To: Mark H Weaver <mhw <at> netris.org>
Cc: 28393 <at> debbugs.gnu.org
Subject: Re: bug#28393: Sound output broken in Audacity
Date: Fri, 8 Sep 2017 19:58:44 -0400

[Message part 1 (text/plain, inline)]

On Fri, Sep 08, 2017 at 12:24:30PM -0400, Mark H Weaver wrote:
> Sound output is broken in Audacity on my Thinkpad X200 running GuixSD,
> at least within GNOME 3 (I haven't tried it anywhere else).  It worked
> in the past.  I see the following error messages in Audacity's
> stdout/stderr:

FYI It's working for me on a foreign distro (Debian).

[signature.asc (application/pgp-signature, inline)]

Message #11 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Florian Paul Schmidt <mista.tapas <at> gmx.net>
To: bug-guix <at> gnu.org
Subject: Re: bug#28393: Sound output broken in Audacity
Date: Sun, 10 Sep 2017 11:11:47 +0200

Hi,

what ALSA pcm device have you configured Audacity to use? From the log 
it looks like it tries to use some pcm devices that are commonly 
configured in a global alsa.conf (on ubuntu for example in 
/usr/share/alsa/alsa.conf (.d). Possibly you do not have these global 
definitions available?

Does using "hw:0,0" work if set as pcm device in the audacity config?

Regards,
Flo

P.S.: I'm not using guix ATM, so I have no idea on where the guix ALSA 
packages would store global configs, etc..

On 08.09.2017 18:24, Mark H Weaver wrote:
> Sound output is broken in Audacity on my Thinkpad X200 running GuixSD,
> at least within GNOME 3 (I haven't tried it anywhere else).  It worked
> in the past.  I see the following error messages in Audacity's
> stdout/stderr:
> 
> (audacity:893): Gtk-WARNING **: Unable to locate theme engine in module_path: "adwaita",
> 
> (audacity:893): Gtk-WARNING **: Unable to locate theme engine in module_path: "adwaita",
> ALSA lib pcm.c:2501:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
> ALSA lib pcm.c:2501:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
> ALSA lib pcm.c:2501:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
> ALSA lib pcm_route.c:867:(find_matching_chmap) Found no matching channel map
> ALSA lib pcm_route.c:867:(find_matching_chmap) Found no matching channel map
> ALSA lib pcm_route.c:867:(find_matching_chmap) Found no matching channel map
> ALSA lib pcm_route.c:867:(find_matching_chmap) Found no matching channel map
> Expression 'stream->playback.pcm' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 4628
> Expression 'stream->playback.pcm' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 4628
> Expression 'stream->playback.pcm' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 4628
> 
>         Mark
> 
> 
> 

Message #14 received at 28393 <at> debbugs.gnu.org (full text, mbox):

From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: Leo Famulari <leo <at> famulari.name>
Cc: Mark H Weaver <mhw <at> netris.org>, 28393 <at> debbugs.gnu.org
Subject: Re: bug#28393: Sound output broken in Audacity
Date: Sun, 10 Sep 2017 23:27:14 -0400

Leo Famulari <leo <at> famulari.name> writes:

> On Fri, Sep 08, 2017 at 12:24:30PM -0400, Mark H Weaver wrote:
>> Sound output is broken in Audacity on my Thinkpad X200 running GuixSD,
>> at least within GNOME 3 (I haven't tried it anywhere else).  It worked
>> in the past.  I see the following error messages in Audacity's
>> stdout/stderr:
>
> FYI It's working for me on a foreign distro (Debian).

I couldn't reproduce the issue on my GuixSD system, but I'm *not* using
Gnome3 (I'm just using a lightweight-desktop derived config with
ratpoison).

Have you checked your levels? My volume was almost inaudible when I
first installed GuixSD. I had to use pactl or something to boost the
volume; Gnome should make this easy though...

Maxim

Message #17 received at 28393 <at> debbugs.gnu.org (full text, mbox):

From: Mark H Weaver <mhw <at> netris.org>
To: Florian Paul Schmidt <mista.tapas <at> gmx.net>
Cc: 28393 <at> debbugs.gnu.org
Subject: Re: bug#28393: Sound output broken in Audacity
Date: Tue, 12 Sep 2017 22:35:54 -0400

Hi,

Florian Paul Schmidt <mista.tapas <at> gmx.net> writes:
> what ALSA pcm device have you configured Audacity to use?

For some reason, it was using "hw:0,1" by default, which is the digital
output of my sound device.

> Does using "hw:0,0" work if set as pcm device in the audacity config?

When I switched it to "hw:0,0" (the analog output), that fixed the
problem.  I'm not sure what changed since the time when this worked
without my having to fiddle with the sound output device setting.

   Thank you!
      Mark

Message #22 received at 28393-done <at> debbugs.gnu.org (full text, mbox):

From: Mark H Weaver <mhw <at> netris.org>
To: 28393-done <at> debbugs.gnu.org
Subject: Re: bug#28393: Sound output broken in Audacity
Date: Thu, 14 Sep 2017 16:20:35 -0400

I'm closing this bug, since no one else has reported anything similar,
and it was easily fixed by configuration.

Thanks to everyone who responded with their ideas.

      Mark

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