Bug 34633 – Support configuration of a virtualised sound card

Bug 34633 - Support configuration of a virtualised sound card


Summary:	Support configuration of a virtualised sound card

Status:	CLOSED WONTFIX

Product:	UCS
Classification:	Unclassified
Component:	Virtualization - UVMM
Version:	UCS 3.2
Hardware:	Other Linux

Importance:	P5 enhancement (vote)
Target Milestone:	---
Assigned To:	UCS maintainers
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Keywords:	ucc-ucs

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2014-04-24 14:17 CEST by Moritz Muehlenhoff
Modified:	2023-06-28 10:46 CEST (History)
CC List:	1 user (show)

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What kind of report is it?:	Feature Request
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Description Moritz Muehlenhoff

2014-04-24 14:17:56 CEST

xrdp terminal servers with sound redirection require a sound card on the xrdp server.

UVMM should support the configuration of a virtual sound card.

Comment 1 Philipp Hahn

2014-05-02 11:57:17 CEST

Example using Pulseaudio:

On the (users) frontend machine (Laptop=10.205.1.98):
$ pacmd load-module module-native-protocol-tcp auth-ip-acl=127.0.0.1;192.168.0.0/16

On the (headless) virtualization host (Server=192.168.0.135):
$ QEMU_AUDIO_DRV=pa QEMU_PA_SERVER=tcp:10.205.1.98:4713 kvm -soundhw hda -cdrom /var/lib/libvirt/images/UCS_3.2-1-amd64.iso -m 512 -sdl


With libvirt:
See <http://libvirt.org/drvqemu.html#qemucommand> for setting QEMU_AUDIO_DRV, which is set to "none" by default by libvirt. This must be first disabled in qemu.conf (UCR template!), before it can be configured. See "kvm -audio-help" for allowed values.

# $EDITOR /etc/libvirt/qemu.conf
vnc_allow_host_audio = 1

# virsh edit $VM
<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
...
  <devices>
...
    <sound model='es1370'>
      <alias name='sound0'/>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </sound>
...
  </devices>
  <qemu:commandline>
    <qemu:env name='QEMU_AUDIO_DRV' value='pa'/>
    <qemu:env name='QEMU_PA_SERVER' value='tcp:10.205.1.98:4713'/>
  </qemu:commandline>
</domain>

In the VM:
$ lspci -s 0:4.0
00:04.0 Multimedia audio controller: Ensoniq ES1370 [AudioPCI]

$ aplay -l
**** Liste der Hardware-Geräte (PLAYBACK) ****
Karte 0: AudioPCI [Ensoniq AudioPCI], Gerät 0: ES1370/1 [ES1370 DAC2/ADC]
  Sub-Geräte: 1/1
  Sub-Gerät #0: subdevice #0
Karte 0: AudioPCI [Ensoniq AudioPCI], Gerät 1: ES1370/2 [ES1370 DAC1]
  Sub-Geräte: 1/1
  Sub-Gerät #0: subdevice #0

$ alsamixer -c 0

$ aplay /usr/share/sounds/alsa/Front_Center.wav

Comment 2 Stefan Gohmann

2017-06-16 20:41:02 CEST

This issue has been filed against UCS 3. UCS 3 is out of the normal maintenance and many UCS components have vastly changed in UCS 4.

If this issue is still valid, please change the version to a newer UCS version otherwise this issue will be automatically closed in the next weeks.

Comment 3 Stefan Gohmann

2017-08-08 07:11:38 CEST

This issue has been filed against UCS 3.2.

UCS 3.2 is out of maintenance and many UCS components have vastly changed in later releases. Thus, this issue is now being closed.

If this issue still occurs in newer UCS versions, please use "Clone this bug" or reopen this issue. In this case please provide detailed information on how this issue is affecting you.