[Spice-devel] Following audio device changes

Victor Toso victortoso at redhat.com
Sat Jan 29 11:23:42 UTC 2022


Hi Neal,

On Fri, Jan 28, 2022 at 01:48:17PM -0700, Neal Piche wrote:
> I am on macOS. Most applications are able to accept changes to
> the audio device from the system and output sound to that
> device.
> 
> I use QEMU, and if I leave spice extensions disabled, the guest
> OS is able to accept changes to the audio device multiple
> times. When I turn on spice extensions, QEMU will try to
> continue outputting sound to the original device. No matter
> what I change the output device to, it will keep whatever it
> had originally. I don't know if it is QEMU using spice
> incorrectly, a misconfiguration, or a bug in one of the spice
> packages.

I'm not sure I understood either. It is either what Frediano
asked or you are saying that QEMU is ignoring the preference to
redirect audio through Spice.

Note that, as far as I know, this kind of setting needs a
shutdown + start again to the VM, in order to change the audio
driver.

Either way, it should help if you provide the qemu command line
(of the setting you think there is a bug) and information on
which spice client are you using.

> Oh, I have tried with a Debian bullseye and Whonix guest with
> the same results.
> 
> Has anyone found a workaround? Should I file a bug, and if so where?

Cheers,
Victor
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