[Sugar-devel] Fwd: Running "pulseaudio" and "alsa" together.

[Peter Robinson]

Do you actually start pulseaudio anywhere? It needs to be started at
some point during the user "login".

Peter

On Sat, Jun 2, 2012 at 2:05 PM, Ajay Garg <ajay at activitycentral.com> wrote:
> FYI.
>
> Will be helpful for any help in this regard.
>
>
> Regards,
> Ajay
>
> ---------- Forwarded message ----------
> From: Ajay Garg <ajay at activitycentral.com>
> Date: Sat, Jun 2, 2012 at 6:32 PM
> Subject: Running "pulseaudio" and "alsa" together.
> To: pulseaudio-discuss-request at lists.freedesktop.org,
> alsa-user at lists.sourceforge.net, Discussion of the development of and with
> GStreamer <gstreamer-devel at lists.freedesktop.org>
>
>
> Hi all.
>
> I have been banging my head for over 5 days now; went through whatever
> google-literature I could possibly through.
> But I guess I will have to ask the experts :|
>
>
> I will list down my queries with the story regarding that query, so as to
> maintain modularity as far as possible.
>
>
> I have a x86-based Fedora-14 Dell laptop; and a XO-1.
>
>
> A)
> On my Dell laptop, the following work seamlessly, and I am able to enjoy the
> mp3.
>
> (i)    gst-launch filesrc location=/path/to/mp3 ! mad ! alsasink
>
> (ii)   gst-launch filesrc location=/path/to/mp3 ! mad ! pulsesink
>
>
> However, on my XO-1, only the following works ::
>
>
> (i)    gst-launch filesrc location=/path/to/mp3 ! mad ! alsasink
>
> whereas the following shows the "pulsesink" plugin not found error ::
>
> (ii)   gst-launch filesrc location=/path/to/mp3 ! mad ! pulsesink
>
>
> I figured out that the package "gstreamer-plugins-good" is required for the
> "pulsesink" plugin.
>
> So, I did "gst-inspect" on both machines, and "rpm -qa | grep
> gstreamer-plugins-good" on both the machines.
>
> To my horror, I saw that the package
> "gstreamer-plugins-good-0.10.26-1.fc14.i686" was installed on both the Dell
> machine, and the XO-1, but only the Dell laptop showed the presence of
> "pulsesink".
>
> Why could this difference be ?
>
>
>
>
>
>
> B)
> Anyhow, I copied "libgstpulse.so" from my Dell machine to the XO-1.
> Thereafter, "pulsesink" could be recognised on the XO-1.
>
> However, "gst-launch filesrc location=/path/to/mp3 ! mad ! pulsesink"
> resulted in a sound only on Dell, and  not XO-1.
>
> So, I researched further, and concluded that I needed to install
> "alsa-plugins-pulseaudio" on the XO-1, so as to set up the pulseaudio
> server, and have the alsa-device as the "other end of the pulseaudio proxy".
>
> So, I installed the package.
>
> However, SOUND HAS STOPPED PLAYING COMPLETELY ON THE XO-1 (the only time I
> hear some sound is during boot-up time).
>
> If I remove "alsa-plugins-pulseaudio", I can again hear the sound via
> "alsasink", but not through "pulsesink".
>
> If I re-install "alsa-plugins-pulseaudio", I can not hear sound through
> "alsasink", nor "pulsesink",
> (
>     not even after doing the following steps ::
>
>                            pulsesudio --kill
>                            sudo rm -r ~/.pulse
>                            sudo rm -r ~/.pulse-cookie
>                            pulseaudio --start
>
>                            <trying to run the mp3 with sudo previleges.>
> )
>
>
> So, what other thing could I possibly do?
>
>
>
> Will be grateful for a reply.
>
>
> Thanks and Regards,
> Ajay
>
>
>
>
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