[Bug 1900352] Re: no sound in spice when VNC enabled

[Daniel Berrange]

If VNC is enabled, then libvirt sets QEMU_AUDIO_DRV=none unless
/etc/libvirt/qemu.conf is set to allow output to host audio.

Clearly this doesn't do the right thing when SPICE is present at the
same time as VNC, but that's libvirt's fault rather than QEMU.

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1900352

Title:
  no sound in spice when VNC enabled

Status in QEMU:
  New

Bug description:
  Running Fedora32 with virt-manager → libvirt → qemu  I noticed that I
  got no sound in my spice client. The VM is configured with a SPICE-
  server and a QXL display, and in addition a VNC display.

  Apparently when I remove the VNC display, then the sound is routed
  just fine to the spice client: I can hear it, and
  `G_MESSAGES_DEBUG=all remote-viewer --spice-debug
  spice://localhost:5900` mentions SpicePlaybackChannel and
  SpiceRecordChannel. With the VNC server configured, such messages are
  missing, and I cannot hear the sound (which is sent by the guest OS to
  the virtual hardware).

  qemu-4.2.1-1.fc32

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1900352/+subscriptions