[Bug 1900352] [NEW] no sound in spice when VNC enabled

[Bug 1900352] [NEW] no sound in spice when VNC enabled

[azrdev]

Public bug reported:

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

** Affects: qemu
     Importance: Undecided
         Status: New

** Description changed:

  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

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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

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

[Gerd Hoffmann]

What is in the libvirt logs (/var/log/libvirt/qemu/${guest}.log) ?

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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

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[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.

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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

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

[Thomas Huth]

So if this is libvirt's fault, can we close this ticket here? Has
anybody already reported this to in the libvirt bug tracker?

** Changed in: qemu
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1900352

Title:
  no sound in spice when VNC enabled

Status in QEMU:
  Incomplete

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

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

[Launchpad Bug Tracker]

[Expired for QEMU because there has been no activity for 60 days.]

** Changed in: qemu
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1900352

Title:
  no sound in spice when VNC enabled

Status in QEMU:
  Expired

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