Pulseaudio : lots of issues, how can I help?

[Lennart Poettering]

On Wed, 10.09.08 20:56, Arthur Pemberton (pemboa at gmail.com) wrote:

> I have a lot of seemingly pulse audio related issues on my F9 desktop.
> Since  I really like the idea behind Pulseaudio, I would like to see
> these get sorted out, and would like to know how I can help in terms
> of providing useful information.
> 
> Here is my situation
> 
> * Sounblaster Live 5.1 PCI -- has full 6 channel audio before, I had
> for a short while after enabling it as per the pulseaudio wiki, but no
> more

Does pavucontrol show the device as having 6 channels? Please make
sure that /etc/pulse/daemon.conf (or ~/.pulse/daemon.conf if you have
that) is configured for 6 channel audio with
"default-sample-channels=6".

Also, an output of "pulseaudio -vvvv" (you might need to stop pa first
by issuing pulseaudio -k first) would be very useful to track down
what is going on.

> * Tvtime -- no audio (doing `padsp sox -r 48000 -w -c 2 -t ossdsp
> /dev/dsp -t ossdsp /dev/dsp` works, but causes noticeable lag)
> * Amarok (xine) -- audio, susceptible to crashes, esp when I scroll to
> fast in Firefox

Xine should work fine. Make sure you are running the newest packages
for F9, then provide crash bt.

> * Kopete -- used to work, mysteriously stopped working
> * Konversation -- never worked
> * Mythfront -- no sound yet (haven't followed
> http://svn.mythtv.org/trac/ticket/3598#comment:16 yet)

I don't know these apps. Don't know much about KDE. Do these also use Xine?

> * V4L tv capture card -- no sound now, used to rely on capturing AUX
> on sound card before

"no sound"? What does that mean?

> * PulseAudio -- seems to average 30% CPU usage when playing music,
> doesn't like me using Firefox too much (seems like a resource issue)

Firefox doesn't use audio. Flash does. Flash is
broken. libflashsupport can fix a few issues but doesn't solve them
entirely.

If PA eats too much CPU this might be caused be the resampler we
use. Consider playinging around with "resample-method" in daemon.conf
and setting it to "trivial".

Lennart

-- 
Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net         ICQ# 11060553
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