On 09/03/2015 03:14 AM, George Dunlap wrote: > On Thu, Sep 3, 2015 at 2:29 AM, Robert Nichols > <rnicholsNOSPAM at comcast.net> wrote: >> I have a PCI sound card that I would like to assign to a VM, but >> when I try to do so the VM fails to start and displays this message: >> >> Error starting domain: Unable to read from monitor: Connection reset by peer [SNIP] >> The sound card is an Asus Xonar DGX PCIe 5.1, and identifies itself >> as "07:04.0 Multimedia audio controller: C-Media Electronics Inc CMI8788 >> [Oxygen HD Audio]". >> >> I see the same problem if I try to assign the motherboard's Intel >> Xeon E3-1200 HD Audio Controller to the VM. Both of these devices >> are supported by the host kernel (3.18.17-13.el6.x86_64). >> >> I have no problem assigning a USB sound device, but those have very >> limited capability. > > Which hypervisor / CentOS version are you using? libvirt-0.10.2-54.el6.x86_64 in CentOS 6.7, using kernel-3.18.17-13.el6.x86_64 from the Xen4CentOS 6 repo. (I need that kernel for the motherboard's sound controller. The behavior when trying to assign a PCI device to the VM is the same with the standard 2.6.32 kernel in CentOS 6.7.) -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it.