GNU bug report logs - #31591
alsamixer Cannot open shared library libasound_module_ctl_pulse.so

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

From: Oleg Pykhalov <go.wigust <at> gmail.com>
To: bug-guix <at> gnu.org
Subject: alsamixer Cannot open shared library libasound_module_ctl_pulse.so
Date: Fri, 25 May 2018 14:18:37 +0300

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

Hello Guix,

The alsa-service-type service produces /etc/asound.conf with content:
--8<---------------cut here---------------start------------->8---
# Generated by 'alsa-service'.

# Use PulseAudio by default
pcm.!default {
  type pulse
  fallback "sysdefault"
  hint {
    show on
    description "Default ALSA Output (currently PulseAudio Sound Server)"
  }
}

ctl.!default {
  type pulse
  fallback "sysdefault"
}
--8<---------------cut here---------------end--------------->8---

This config brokes alsamixer utility (removing asound.conf fixes issue):

$ alsamixer
--8<---------------cut here---------------start------------->8---
ALSA lib dlmisc.c:287:(snd1_dlobj_cache_get) Cannot open shared library /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/alsa-lib/libasound_module_ctl_pulse.so ((null): /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/alsa-lib/libasound_module_ctl_pulse.so: cannot open shared object file: No such file or directory)
cannot open mixer: No such device or address
--8<---------------cut here---------------end--------------->8---

alsa-lib doesn't contain libasound_module_ctl_pulse.so

$ find /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib
--8<---------------cut here---------------start------------->8---
/gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib
/gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.so
/gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.la
/gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.so.2
/gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/pkgconfig
/gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/pkgconfig/alsa.pc
/gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.so.2.0.0
--8<---------------cut here---------------end--------------->8---

but alsa-plugins:pulseaudio does

$ find /gnu/store/cfz7jvkzp3k2ginvzz35pyp7zffabksk-alsa-plugins-1.1.6-pulseaudio | grep libasound_module_ctl_pulse.so
--8<---------------cut here---------------start------------->8---
/gnu/store/cfz7jvkzp3k2ginvzz35pyp7zffabksk-alsa-plugins-1.1.6-pulseaudio/lib/alsa-lib/libasound_module_ctl_pulse.so
--8<---------------cut here---------------end--------------->8---

Still after install alsa-utils and alsa-plugins:pulseaudio in my user
profile (I also have alsamixer in system profile), alsamixer cannot find
libasound_module_ctl_pulse.so

Oleg.

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

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

From: Julien Lepiller <julien <at> lepiller.eu>
To: bug-guix <at> gnu.org
Subject: Re: bug#31591: alsamixer Cannot open shared library
 libasound_module_ctl_pulse.so
Date: Fri, 25 May 2018 14:30:10 +0200

Le 2018-05-25 13:18, Oleg Pykhalov a écrit :
> Hello Guix,
> 
> The alsa-service-type service produces /etc/asound.conf with content:
> --8<---------------cut here---------------start------------->8---
> # Generated by 'alsa-service'.
> 
> # Use PulseAudio by default
> pcm.!default {
>   type pulse
>   fallback "sysdefault"
>   hint {
>     show on
>     description "Default ALSA Output (currently PulseAudio Sound 
> Server)"
>   }
> }
> 
> ctl.!default {
>   type pulse
>   fallback "sysdefault"
> }
> --8<---------------cut here---------------end--------------->8---
> 
> This config brokes alsamixer utility (removing asound.conf fixes 
> issue):
> 
> $ alsamixer
> --8<---------------cut here---------------start------------->8---
> ALSA lib dlmisc.c:287:(snd1_dlobj_cache_get) Cannot open shared
> library
> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/alsa-lib/libasound_module_ctl_pulse.so
> ((null):
> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/alsa-lib/libasound_module_ctl_pulse.so:
> cannot open shared object file: No such file or directory)
> cannot open mixer: No such device or address
> --8<---------------cut here---------------end--------------->8---
> 
> alsa-lib doesn't contain libasound_module_ctl_pulse.so
> 
> $ find /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib
> --8<---------------cut here---------------start------------->8---
> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib
> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.so
> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.la
> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.so.2
> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/pkgconfig
> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/pkgconfig/alsa.pc
> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.so.2.0.0
> --8<---------------cut here---------------end--------------->8---
> 
> but alsa-plugins:pulseaudio does
> 
> $ find
> /gnu/store/cfz7jvkzp3k2ginvzz35pyp7zffabksk-alsa-plugins-1.1.6-pulseaudio
> | grep libasound_module_ctl_pulse.so
> --8<---------------cut here---------------start------------->8---
> /gnu/store/cfz7jvkzp3k2ginvzz35pyp7zffabksk-alsa-plugins-1.1.6-pulseaudio/lib/alsa-lib/libasound_module_ctl_pulse.so
> --8<---------------cut here---------------end--------------->8---
> 
> Still after install alsa-utils and alsa-plugins:pulseaudio in my user
> profile (I also have alsamixer in system profile), alsamixer cannot 
> find
> libasound_module_ctl_pulse.so
> 
> Oleg.

Hi Oleg,

I've sent a patch to the mailing list for this issue already. I think 
I'll push it this evening.

https://lists.gnu.org/archive/html/guix-patches/2018-04/msg00351.html

Message #11 received at 31591 <at> debbugs.gnu.org (full text, mbox):

From: Ricardo Wurmus <ricardo.wurmus <at> mdc-berlin.de>
To: Julien Lepiller <julien <at> lepiller.eu>
Cc: 31591 <at> debbugs.gnu.org
Subject: Re: bug#31591: alsamixer Cannot open shared library
 libasound_module_ctl_pulse.so
Date: Fri, 15 Jun 2018 13:43:33 +0200

Hi Julien,

>> $ alsamixer
>> --8<---------------cut here---------------start------------->8---
>> ALSA lib dlmisc.c:287:(snd1_dlobj_cache_get) Cannot open shared
>> library
>> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/alsa-lib/libasound_module_ctl_pulse.so
>> ((null):
>> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/alsa-lib/libasound_module_ctl_pulse.so:
>> cannot open shared object file: No such file or directory)
>> cannot open mixer: No such device or address
>> --8<---------------cut here---------------end--------------->8---
>>
>> alsa-lib doesn't contain libasound_module_ctl_pulse.so
>>
>> $ find /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib
>> --8<---------------cut here---------------start------------->8---
>> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib
>> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.so
>> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.la
>> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.so.2
>> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/pkgconfig
>> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/pkgconfig/alsa.pc
>> /gnu/store/98fa0av6rsj9kzrhdw45n9k53gp0d4dg-alsa-lib-1.1.6/lib/libasound.so.2.0.0
>> --8<---------------cut here---------------end--------------->8---
>>
>> but alsa-plugins:pulseaudio does
>>
>> $ find
>> /gnu/store/cfz7jvkzp3k2ginvzz35pyp7zffabksk-alsa-plugins-1.1.6-pulseaudio
>> | grep libasound_module_ctl_pulse.so
>> --8<---------------cut here---------------start------------->8---
>> /gnu/store/cfz7jvkzp3k2ginvzz35pyp7zffabksk-alsa-plugins-1.1.6-pulseaudio/lib/alsa-lib/libasound_module_ctl_pulse.so
>> --8<---------------cut here---------------end--------------->8---
>>
>> Still after install alsa-utils and alsa-plugins:pulseaudio in my user
>> profile (I also have alsamixer in system profile), alsamixer cannot
>> find
>> libasound_module_ctl_pulse.so

[…]

> I've sent a patch to the mailing list for this issue already. I think
> I'll push it this evening.
>
> https://lists.gnu.org/archive/html/guix-patches/2018-04/msg00351.html

I still see the reported behaviour.  I only installed “alsa-utils” in my
default profile, not the pulseaudio plugin.

Can we avoid this problem by including the pulseaudio plugin
automatically when alsa-services is configured to use pulseaudio?

--
Ricardo

Message #16 received at 31591-done <at> debbugs.gnu.org (full text, mbox):

From: iyzsong <at> member.fsf.org (宋文武)
To: Oleg Pykhalov <go.wigust <at> gmail.com>
Cc: Julien Lepiller <julien <at> lepiller.eu>, 31934 <at> debbugs.gnu.org,
 31591-done <at> debbugs.gnu.org
Subject: Re: [bug#31934] [PATCH] services: sound: Properly handle alsa-plugins.
Date: Mon, 25 Jun 2018 23:34:13 +0800

Oleg Pykhalov <go.wigust <at> gmail.com> writes:

> Hello,
>
> iyzsong <at> member.fsf.org (宋文武) writes:
>
>> Julien Lepiller <julien <at> lepiller.eu> writes:
>
> […]
>
>> Hello, after some hours of searching...  I found that we can use the
>> 'lib' option in 'pcm_type' and 'ctl_type' to specify the library path
>> for alsa plugins, e.g:
>
> Thats a nice hack :-)  Thank you for working on this.
>
> […]
>
>> So I think we can make our 'alsa-service' do this, instead of patching
>> alsa-lib for 'ALSA_PLUGIN_DIR'.
>
> Done.  Here is a patch which I tested on my machine by ‘system reconfigure’:
>

Thank you, I modified it to keep the 'pulseaudio? #f' function, and
pushed :-)

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