On 09/03/2015 01:59 PM, Robert Nichols wrote: > 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.) That's qemu / KVM. -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it.