Re: how to configure pulseaudio to use analog speaker on motherboard not hdmi on video card

[Klaus <klaus.doering999@gmail.com>]

On 02/01/14 02:44, Mitchell Laks wrote:

> Before I kill pa the first time:
>
> mlaks@Rashi:~$ aplay -D front piano2.wav
> aplay: main:682: audio open error: Device or resource busy
>
> then I do:
>
> mlaks@Rashi:~$ ps aux|grep pulse
> 125       5074 14.4  0.0 457064  7192 ?        Sl   21:13   1:07 /usr/bin/pulseaudio --start --log-target=syslog
> 125       5570  0.0  0.0 117148  3204 ?        S    21:13   0:00 /usr/lib/pulseaudio/pulse/gconf-helper
> mlaks     6601  0.0  0.0 311224  6432 ?        S<l  21:20   0:00 /usr/bin/pulseaudio --start --log-target=syslog
> mlaks     6608  0.0  0.0 117120  3172 ?        S    21:20   0:00 /usr/lib/pulseaudio/pulse/gconf-helper
> mlaks     6629  0.0  0.0   8528   876 pts/2    S+   21:21   0:00 grep pulse
>
>
>
> mlaks@Rashi:~$ pacmd dump
> Welcome to PulseAudio! Use "help" for usage information.
> > > > ### Configuration dump generated at Wed Jan  1 21:34:11 2014
>
> <snip>
> set-default-sink alsa_output.pci-0000_01_00.1.hdmi-stereo
> set-default-source alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor
>
>
> It looks like a tough nut to crack...
> Mitchell
We might be getting there. See the two different users running 
pulseaudio, uid '125' and 'mlaks'. Who is this '125' anyway? I'd accuse 
them of hogging the audio sink, making it unavailable to 'mlaks'. Here 
is a similar report: 
<http://ubuntuforums.org/showthread.php?t=2143157&p=12650610#post12650610>

$ grep 125 /etc/passwd
$ grep audio  /etc/group

Here's a snipped I found on the ArchWiki Alsa pages:
"Membership in the audio group also allows direct access to devices, 
which can lead to applications grabbing exclusive output (breaking 
software mixing) (snip) Therefore, adding a user to the audio group is 
not recommended, unless you specifically need to[1].

[1] https://wiki.ubuntu.com/Audio/TheAudioGroup";

So, once you find out who '125' is, let's see whether you can then stop 
that process monopolising the audio card0.

BTW, killing and restarting the current user's PA process should be much 
easier than what you do:

$ pulseaudio -k

The default behaviour is to automatically respawn a process.

$ grep spawn /etc/pulse/client.conf
; autospawn = yes

--
Klaus