Ubuntu
pulseaudio package

[hardy] Pulseaudio blocks dmix

Asked by LCID Fire

Binary package hint: pulseaudio

When an application is outputting sound through pulseaudio and a second app tries to output via alsa dmix is blocked:
ALSA lib pcm_dmix.c:874:(snd_pcm_dmix_open) unable to open slave
ALSA open: Device or resource busy

If I kill pulseaudio and both application are using alsa it works fine.

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This question was originally filed as bug #222606.

Revision history for this message
Luke Yelavich (themuso) said : 		#1

Pulseaudio is dsigned to use the soundcard directly by default. You can always reconfigure pulseaudio to use dmix if you wish.

W

Revision history for this message
LCID Fire (lcid-fire) said : 		#2

Since you have jack, alsa, oss and pulseaudio all in use at the same time I'd say the default should be changed to dmix. You cannot force a new (inexperienced) ubuntu user to mess with such things (whereas this is a point which works pretty out of the box in windows).

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Kwalker1969 (kevinw-1) said : 		#3

how do u convert paulseaudio into dmix?

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marcobra (Marco Braida) (marcobra) said : 		#4

Might be this helps you: http://www.pulseaudio.org/wiki/PerfectSetup

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