> On 11 Jun 2016, at 05:42, Gianluca Cecchi <gianluca.cec...@gmail.com> wrote:
> 
> Hello,
> I'm testing video and audio capacity inside a guest.
> Guest chosen is CentOS 6 with latest updates.
> oVirt is 3.6.6 on an intel NUC6i5SYH with CentOS 7.2 OS
> 
> BTW: is it of any importance audio adapter on the host?
> In case lspci on host gives
> 00:1f.3 Audio device: Intel Corporation Device 9d70 (rev 21)
> 
> Client connecting from user portal is Fedora 23 on an Asus laptop U36SD where 
> audio works and lspci gives
> 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family 
> High Definition Audio Controller (rev 05)
> 
> On CentOS 6 guest the audio adapter detected by OS with lspci is
> 00:08.0 Audio device: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) 
> High Definition Audio Controller (rev 01)
> 
> It seems all ok, apart that on guest actually I don't get any audio, also 
> from test speakers page ;-)
> Both on guest and on client the volume bar is near the maximum.
> 
> Any hints about debugging?
> From host point of view the qemu-kvm command line is this one below
> 
> I don't understand the env variable
> QEMU_AUDIO_DRV=none
> ???
> 
> If it can be of any importance, I initially configured the guest without 
> sound card and in fact in gnome I saw the audio card as "dummy".
> Then I powered off the guest and enabled sound card from user portal edit vm 
> (I see it enabled also from admin portal btw...) and then powered on the VM.
> Now the sound card seems to be present but no audio

Sorry for late response:/
This would be best answered by spice guys I guess
Latest virt-viewer?

> 
> Thanks in advance,
> Gianluca
> 
> 2016-06-11 09:22:13.698+0000: starting up libvirt version: 1.2.17, package: 
> 13.el7_2.4 (CentOS BuildSystem <http://bugs.centos.org 
> <http://bugs.centos.org/>>, 2016-03-
> 31-16:56:26, worker1.bsys.centos.org <http://worker1.bsys.centos.org/>), qemu 
> version: 2.3.0 (qemu-kvm-ev-2.3.0-31.el7_2.10.1)
> LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin 
> QEMU_AUDIO_DRV=none /usr/libexec/qemu-kvm -name c6desktop -S -machine pc-i440
> fx-rhel7.2.0,accel=kvm,usb=off -cpu Broadwell-noTSX -m 
> size=3145728k,slots=16,maxmem=4294967296k -realtime mlock=off -smp 
> 1,maxcpus=16,socket
> s=16,cores=1,threads=1 -numa node,nodeid=0,cpus=0,mem=3072 -uuid 
> 68a82ada-a1d2-44d0-85b0-f3a08cc2f579 -smbios type=1,manufacturer=oVirt,produ
> ct=oVirt 
> Node,version=7-2.1511.el7.centos.2.10,serial=AC1EDDD3-CAF1-2711-EE16-B8AEED7F1711,uuid=68a82ada-a1d2-44d0-85b0-f3a08cc2f579
>  -no-user
> -config -nodefaults -chardev 
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-c6desktop/monitor.sock,server,nowait
>  -mon chardev=charmo
> nitor,id=monitor,mode=control -rtc base=2016-06-11T09:22:13,driftfix=slew 
> -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -boo
> t menu=on,strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x9.0x7 
> -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x
> 9.0x2 -device 
> ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x9.0x1 -device 
> ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,
> multifunction=on,addr=0x9 -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x3 
> -device virtio-serial-pci,id=virtio-serial0,max_ports=16,bus=pc
> i.0,addr=0x4 -drive if=none,id=drive-ide0-1-0,readonly=on,format=raw -device 
> ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -drive 
> file=/rhev/data-center/00000001-0001-0001-0001-000000000343/572eabe7-15d0-42c2-8fa9-0bd773e22e2e/images/aff55e62-6a41-4f75-bbd3-78561eae18f3/
> f520473e-8fbe-4886-bb64-921b42edf499,if=none,id=drive-virtio-disk0,format=raw,serial=aff55e62-6a41-4f75-bbd3-78561eae18f3,cache=none,werror=s
> top,rerror=stop,aio=threads -device 
> virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
>  -netdev t
> ap,fd=28,id=hostnet0,vhost=on,vhostfd=29 -device 
> virtio-net-pci,netdev=hostnet0,id=net0,mac=00:1a:4a:16:01:51,bus=pci.0,addr=0x7
>  -chardev soc
> ket,id=charserial0,path=/var/run/ovirt-vmconsole-console/68a82ada-a1d2-44d0-85b0-f3a08cc2f579.soc
> k,server,nowait -device isa-serial,chardev=charserial0,id=serial0 -chardev 
> socket,id=charchannel0,path=/var/lib/libvirt/qemu/channels/68a82ada-a1d2-44d0-85b0-f3a08cc2f579.com.redhat.rhevm.vdsm,server,nowait
>  -device 
> virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.rhevm.vdsm
>  -chardev 
> socket,id=charchannel1,path=/var/lib/libvirt/qemu/channels/68a82ada-a1d2-44d0-85b0-f3a08cc2f579.org.qemu.guest_agent.0,server,nowait
>  -device 
> virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=org.qemu.guest_agent.0
>  -chardev spicevmc,id=charchannel2,name=vdagent -device 
> virtserialport,bus=virtio-serial0.0,nr=3,chardev=charchannel2,id=channel2,name=com.redhat.spice.0
>  -spice 
> port=5901,tls-port=5902,addr=0,x509-dir=/etc/pki/vdsm/libvirt-spice,seamless-migration=on
>  -vnc 0:3,password -device 
> qxl-vga,id=video0,ram_size=67108864,vram_size=8388608,vgamem_mb=16,bus=pci.0,addr=0x2
>  -device intel-hda,id=sound0,bus=pci.0,addr=0x8 -device 
> hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev 
> spicevmc,id=charredir0,name=usbredir -device 
> usb-redir,chardev=charredir0,id=redir0 -chardev 
> spicevmc,id=charredir1,name=usbredir -device 
> usb-redir,chardev=charredir1,id=redir1 -chardev 
> spicevmc,id=charredir2,name=usbredir -device 
> usb-redir,chardev=charredir2,id=redir2 -chardev 
> spicevmc,id=charredir3,name=usbredir -device 
> usb-redir,chardev=charredir3,id=redir3 -device 
> virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 -msg timestamp=on
> 2016-06-11T09:22:13.748410Z qemu-kvm: warning: CPU(s) not present in any NUMA 
> nodes: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
> 2016-06-11T09:22:13.748524Z qemu-kvm: warning: All CPU(s) up to maxcpus 
> should be described in NUMA config
> main_channel_link: add main channel client
> main_channel_handle_parsed: net test: latency 21.910000 ms, bitrate 51635025 
> bps (49.242997 Mbps)
> inputs_connect: inputs channel client create
> red_dispatcher_set_cursor_peer: 
> main_channel_handle_parsed: agent start
> main_channel_handle_parsed: agent start
> 
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