[Qemu-devel] [Bug 393430] Re: kvm: use PulseAudio instead of ALSA

[Dave Walker]

The Debian big referenced suggested using ALSA over OSS, this bug is
related to favouring PA over ALSA.  The Debian issue was resolved with:

--- kvm-79+dfsg/debian/rules
+++ kvm-82+dfsg/debian/rules
@@ -141,7 +141,9 @@
 config.status: configure
        dh_testdir
        # Add here commands to configure the package.
-       ./configure --prefix=/usr
+       ./configure --prefix=/usr \
+                    --audio-drv-list="alsa oss sdl" \
+                    --audio-card-list="ac97 adlib cs4231a gus"
 
 
 build-arch: patch config.status build-arch-stamp


However, the current debian qemu-kvm package contains:
                    --audio-drv-list="alsa oss sdl pa" \
                    --audio-card-list="ac97 es1370 sb16 cs4231a adlib gus hda" \


Neither of these configure options are set in debian/rules.  This probably 
requires further investigation.

Thanks.

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https://bugs.launchpad.net/bugs/393430

Title:
  kvm: use PulseAudio instead of ALSA

Status in QEMU:
  Incomplete
Status in “kvm” package in Ubuntu:
  Incomplete
Status in “kvm” package in Debian:
  Fix Released

Bug description:
  Binary package hint: kvm

  kvm in jaunty prefers to use OSS drivers rather than ALSA:
  # dpkg -l | grep kvm
  ii  kvm            1:84+dfsg-0ubuntu11            Full virtualization on i386 
and amd64 hardwa
  # kvm -audio-help | grep ^Name
  Name: oss
  Name: alsa
  Name: sdl
  Name: pa
  Name: none
  Name: wav
  #

  Because of that, once a virtual machine with working audio card
  starts, the kvm grabs the audio card entirely for itself. Any
  subsequent operations on audio card either from the host machine, or
  from the other audio-enabled virtual machines lock up (apparently
  awaiting on on access to the audio card).

  The bug is echo of the corresponding debian bug:
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508018

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