Re: ALSA Problem - Broken Pipe?

["Kristin Low" <kristin.low@xxxxxxxxx>]

I don't think it's using the modem... I do hear some sound; it just cuts out if I select pulseaudio or ALSA. OSS works fine. Killing pulseaudio forces me to use ALSA or OSS... And since pulseaudio dies when ALSA hiccups, I think ALSA is the culprit. I thought I had the latest drivers and libraries, but I'll look into it.

On Wed, Jul 9, 2008 at 7:29 PM, stan <ghjeold_i_mwee@xxxxxxx> wrote:

Kristin Low wrote:

Hi,

I was hoping someone could help me solve my ALSA problems, as I'm still somewhat new to Linux. I'm running Ubuntu Hardy Heron and haven't changed any config files however ALSA does not work properly and I assume that because of this, Pulseaudio doesn't work either since the problems come hand-in-hand. Playing a song, I can hear the song for a random length of time and then it cuts out. If I run VLC from a terminal, it claims "alsa output error: write error (broken pipe)" as the cause and continues to write that over the screen until I force VLC to quit. If I restart the song again, the same thing occurs. When I login, only part of the login sounds play and are cut just the same as any songs or audio files I try. It seems like my sound card is detected fine, and OSS works. It's on a Toshiba Satellite a70. Please help! I've never had ALSA working properly.


Below I've listed the alsa-info.txt as per https://wiki.ubuntu.com/DebuggingSoundProblems.


Thanks,

Kristin

This is kind of a wild question, but are you using the modem while trying to play sound?  They have the same IRQ and there might be a conflict.  If you aren't using the modem is there a way to disable it using a jumper on the board?

What happens if you disable pulseaudio completely and try playing sound?  After you have disabled pulseaudio, try    aplay -D plughw:0,0  some.wav    .  If this works, it is pulseaudio causing the problem.

This comes off the Frinika page http://frinika.sourceforge.net/  It should give your sound
higher priority.  I don't know that it will work, but it might help.

...


  Frinika with realtime priority using Ubuntu Linux (Feisty)
  <http://frinika.sourceforge.net/?p=12>

May 15th, 2007

Modify:

/etc/security/limits.conf:

@audio - rtprio 90
@audio - nice -5
@audio - memlock 50000
And make your user member of the audio group.

You will then experience very stable sound and be able to use low latencies!

...

You could also download and install the latest alsa library and drivers

http://www.alsa-project.org/main/index.php/Changes_v1.0.17rc2_v1.0.17rc3

If nothing above helps, try posting on the alsa-devel list.  There might be something wrong with the driver.  The developers will have a better idea of that than me.

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