I did dist-upgrade and now the situation is the same as in the bug description, so we are squarely at the beginning:
... once a virtual machine with working audio card starts, the kvm grabs the audio card entirely for itself. Any subsequent operations on audio card either from the host machine, or from the other audio-enabled virtual machines lock up (apparently awaiting on on access to the audio card). # lsof | grep snd kvm 2085 root mem REG 8,1 385016 12068460 /usr/lib/libsndfile.so.1.0.20 kvm 2093 root mem REG 8,1 385016 12068460 /usr/lib/libsndfile.so.1.0.20 kvm 5343 root mem CHR 116,7 3967 /dev/snd/pcmC0D0c kvm 5343 root mem REG 8,1 385016 12068460 /usr/lib/libsndfile.so.1.0.20 kvm 5343 root mem CHR 116,6 3963 /dev/snd/pcmC0D0p kvm 5343 root 20r CHR 116,2 0t0 3859 /dev/snd/timer kvm 5343 root 21u CHR 116,6 0t0 3963 /dev/snd/pcmC0D0p kvm 5343 root 22u CHR 116,9 0t0 3971 /dev/snd/controlC0 kvm 5343 root 23r CHR 116,2 0t0 3859 /dev/snd/timer kvm 5343 root 24u CHR 116,7 0t0 3967 /dev/snd/pcmC0D0c kvm 5343 root 25u CHR 116,9 0t0 3971 /dev/snd/controlC0 gnome-set 5541 gdm mem REG 8,1 385016 12068460 /usr/lib/libsndfile.so.1.0.20 pulseaudi 5559 gdm mem REG 8,1 385016 12068460 /usr/lib/libsndfile.so.1.0.20 gconf-hel 5561 gdm mem REG 8,1 385016 12068460 /usr/lib/libsndfile.so.1.0.20 # I though that alsa interface to sound card allows several users simultaneously... Will running kvm with pa (pulseaudio) driver solve the problem? How can I do that? -- kvm: please prefer ALSA over OSS https://bugs.launchpad.net/bugs/393430 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
