Thanks for reporting this bug. Would it be possible for you to test this with the upstream qemu?
Did this used to work consistently with older versions of qemu (say in precise)? Is there any pattern - for instance a full shutdown followed by power-on of the host results in the sound card being usable in the guest, while a reboot results in the sound card not being usable in the guest? ** Changed in: qemu-kvm (Ubuntu) Importance: Undecided => Medium ** Changed in: qemu-kvm (Ubuntu) Status: New => Incomplete ** Changed in: qemu-kvm (Ubuntu) Importance: Medium => Low -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/1071011 Title: specific device not available in client (passthrough) with high cpu load on host, none in client To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1071011/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs