But I could not get any sound from the guest, and it was important considering I am going to test some audio-related setup in these VMs.
I had to scour the interwebs and try different things to get the audio in Guest OS working, so documenting them here, in the hopes that someone finds these helpful, and I can refer back to them if needed in future.
The things we are trying to fix are:
1) Make KVM run as a non-root user, specifically, as your login, so that it can share your ALSA audio.
2) Make KVM to not disable audio.
3) Replace the KVM binary with a script that sets up proper environment variable, so that KVM and use your alsa audio driver.
Instructions follow:
cd /usr/bin sudo mv kvm kvm.bin sudo touch kvm sudo chmod +x kvmEdit /usr/bin/kvm and paste this text in it:
#!/bin/sh QEMU_AUDIO_DRV=alsa /usr/bin/kvm.bin $@Edit /etc/libvirt/qemu.conf and look for the following lines (remember all these lines are in different sections of this file) :
# vnc_allow_host_audio = 0 # user = "root" # group = "root"and replace root with your local user name, for example:
vnc_allow_host_audio = 1 user = "gurjeet" group = "gurjeet"Now restart the KVM service
sudo service libvirt-bin restartNow launch your guest OS and enjoy its sound.
[1] https://help.ubuntu.com/community/KVM
[2] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649442
