[Qemu-devel] [Bug 1313816] Re: qemu should close sound device when no more needs.

[Michael Tokarev]

This will not work if qemu is chrooted, because audio devices (/dev)
aren't usually available there.

So at least a naive approach should not be used.  If nothing else, it
should be an option.

But really, with pulseaudio backend, there should be no need to go this
route and to add new code.

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https://bugs.launchpad.net/bugs/1313816

Title:
  qemu should close sound device when no more needs.

Status in QEMU:
  New

Bug description:
  I use alsa directly or via pulseaudio on qemu.
  And I use xmms2 as well as qemu.

  When I use alsa, one of xmms2 or qemu can play sound.
  When I use pulseaudio with qemu and pulseaudio -k, and pulseaudio --start,
  qemu can't play sound.

  I think that:
  - qemu should open sound device when needs.
  - qemu should close sound device when no more needs.

  One of xmms2 or qemu can play sound, but both of them rarely play sound
  at the same time.
  qemu occurs error on pulseaudio -k, but once close and open the device,
  the error will be recovered, I hope.

  Host: slackware64 14.1, linux kernel 3.14.2
  Qemu: 2.0.0
  QEMU_AUDIO_DRV=pa /usr/local/bin/qemu-system-x86_64 -enable-kvm -hda 
/dosc/win8_x64.img -soundhw hda -boot c -m 2G -cpu host -usb -usbdevice tablet 
-display sdl -rtc base=localtime
  Guest: Windows 8.1 x64

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