On Saturday, 7 May 2022 14:45:06 BST Nikos Chantziaras wrote: > Audio in KVM (qemu) launched through libvirtmanager used to work fine > last time I used it (about 3 months ago.) There has been lots of updates > since then, including a switch from Pulseaudio to Pipewire, and > something along the way broke it. Now I get no sound whatsoever. qemu > doesn't even show up as an application in the audio mixer, nor in the > output of "pw-top". > > If I launch the VM directly through qemu with: > > qemu-system-x86_64 [...] -audiodev id=audio1,driver=pa > > then it works fine. But if I launch it through libvirtmanager, it > doesn't. Even if I force the use of "-audiodev id=audio1,driver=pa" in > the XML of the VM in /etc/libvirt/qemu/, it still doesn't work. There's > no error anywhere, no warning, nothing in the logs. > > Does anyone have any idea what to do?
I don't use libvirt, but use QEMU from a console. For the last couple of versions I have been getting these sort of notices when I launch a Win10 VM: ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.2.6.1/work/alsa-lib-1.2.6.1/ src/pcm/pcm.c:8568:(snd_pcm_recover) underrun occurred I don't have pulseaudio on this PC, only alsa modules and pipewire with default settings. The VM audio works, but it clips. I haven't looked into it yet, because audio in VM is less of an issue for my use case, hence I have no useful suggestions (yet). :-)
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