Bookworm 20230504 - sound state is muted on power on with qemu 7.2 arm64

[Frank Carmickle <frank@carmickle.com>]

Greetings Debian accessibility folk,

I'm finding that on power on the sound card is muted. It appears that alsactl restore is being run, and even if I run it by hand it doesn't unmute the card. It appears that the card is in a muted state even though alsa thinks that it is not. Toggling the mute state on and off causes the audio to work. If I reboot the machine the sound comes up working. It's particularly an issue with the power on state. I'm running qemu 7.2 arm64.

Has anyone sorted this trouble out for themselves?

Thanks much.
--FC