virtualbox.org

This is disappointing.
I had perfectly working Windows 7 64 & 32bit working in Virtualbox on Linux host.
When I received the popup that a new virtualbox version is available I installed it.

After the Virtualbox upgrade, there is now NO SOUND.
This is severely disappointing and the upgrade broke a perfectly working system.

This happened a while back (upgraded to 6.1.12 and I tried everything to try and get sound back. It seems that you should NEVER upgrade virtualbpx if you have a working system. It just breaks things.
I tried reinstalling the drivers in Win 7 etc and nothing works.

Everything was working perfect before the virtualbox upgrade and clearly code changes in Virtuualbox triggered the failure.

Any idea how I can get sound back ?

I had a similar issue a while ago (and still persisting even after several downgrades), but so far no solution yet. My thread is at viewtopic.php?f=6&t=98619

I fixed the scanner thingie, but the sound is still not there, despite trying a lot of steps to resolve the issue. I think it also started somewhere around the versions 6+ after the upgrades. Currently on last known good 5.1.12 r112440 (didn't get the sound back, though), but I'm thinking of trying an upgrade to the latest and try a few more things.

I had a similar issue after upgrading the host Ubuntu Linux from 18.04 to 20.04.
Symptoms:
Simply no audio signal from the headset mic arriving in the vm.
But no errors in the logs.

The fix was (This was suggested somewhere else, I forgot where).

Remove the folder ~/.config/pulse and all it's contents. (Perhaps rename instead to have a backup of it, just in case)
Log out and Login again. This will create a fresh set of files there. I guess you would loose some of your audio preference.

Try again: Start your VM and check the microphone.

Host: Ubuntu 20.04 (upgraded from 16.04 and 18.04)
Virtualbox version 5.2.44
The VM is a Win2K system
Audio hardware emulation using "Intel HD Driver"

I will try removing pulse configs thanks.
The strange thing is that Win8 virtual machine still has sound, but Win7 sound disappeared on both 32 and 64 bit versions.

Thanks a lot.
Removing pulse config did the trick.

Whenever I have a problem the last two years it is either a systemD issue or software written by the same zealots.
The latter is pulseaudio and is the the case here.

These bozos are so hell bent on replacing every daemon on Linux that it creates horrendous stability issues.

I dont blame virtualbox on this one. I know all too well about the hell having to deal with systemD and it's perriferal offspring.

Anyway, thanks for the advice. It worked.