Re: [gentoo-user] no sound with pulseaudio

["Canek Peláez Valdés" <caneko@gmail.com>]

On Wed, Sep 28, 2011 at 5:49 PM, Tamer Higazi <th982a@googlemail.com> wrote:
> Am 28.09.2011 23:28, schrieb Canek Peláez Valdés:
>> On Wed, Sep 28, 2011 at 5:24 PM, Tamer Higazi <th982a@googlemail.com> wrote:
>>> Hi!
>>> I have configured pulseaudio according
>>>
>>> http://en.gentoo-wiki.com/wiki/PulseAudio
>>>
>>>
>>> but I simply have no sound.
>>>
>>> The pulseaudio playback volume meter shows me signal, and that the bars
>>> are jumping if I playback a music track.
>>>
>>> alsa-plugins (with pulseaudio USE flag)
>>> gst-plugins-pulse
>>>
>>> are installed. But I don't know what is being blocked, that I have no
>>> sound output at my headphones.
>>>
>>> PS: the headphones are ok.
>>>
>>> Any suggestions?
>>
>> What music player are you using? Did you set or modify ~/.asoundrc?
>
> ~/.asoundrc doesn't exist.
>
> I have /etc/asound.conf with these entries:
>
>
> pcm.pulse {
>    type pulse
> }
>
> ctl.pulse {
>    type pulse
> }
>
> for all alsa applications to be redirected to pulse!

Mmmh. It's not exactly like that: If you use pcm.pulse and ctl.pulse,
then you need to specify pulse as the virtual ALSA device. If you want
"all alsa applications to be redirected to pulse", you need:

pcm.!default {
    type pulse
}

ctl.!default {
    type pulse
}

> The players Rhythmbox, xine all with pulseaudio default output plugins.

That should work. Did you check in sound settings that pulse is indeed
the desired output

>> What Desktop do you use?
>
> Gnome, latest 2.x version
>
>  Is the pulseaudio daemon running?
>
> Yes!
>
> tamer@office ~ $ pstree -pu | grep puls
>
> |-pulseaudio(22833,tamer)-+-gconf-helper(22840)---{gconf-helper}(22841)
>        |                         |-{pulseaudio}(22839)
>        |                         `-{pulseaudio}(22842)

Looks OK.

> I have added all config files in "/etc/pulse/"

I wouldn't touch the files on /etc/pulse. I recommend first trying to
make it work with the files included with pulseaudio (backup
/etc/pulse, move the dir out of /etc and emerge again pulseaudio)
before trying anything else. Supposedly, pulseaudio should "just
works". Since the first time I installed it I have never touched the
files in /etc/pulse, except to change the log-level of the daemon.

I'm on GNOME 3, so things are a little different, and I don't remember
exactly the dialogs, but instead of the Gentoo wiki page, I would
follow this:

http://www.pulseaudio.org/wiki/PerfectSetup

And more specifically:

http://www.pulseaudio.org/wiki/PerfectSetup#GNOME

and

http://www.pulseaudio.org/wiki/PerfectSetup#GStreamerApplications

Also, in really weird cases, the ALSA device gets its volume muted:
You can try to remove (back up first) /etc/asound.conf, and run (as
root)

alsamixer -V all

and trying to unmute and turn up the volume on everything. When you
hear something with any player, return the asound.conf to /etc and try
again.

Regards.
-- 
Canek Peláez Valdés
Posgrado en Ciencia e Ingeniería de la Computación
Universidad Nacional Autónoma de México