[vfio-users] Audio sync issues Windows 10
Zachary Boley
zboley00 at gmail.com
Sat Dec 17 20:58:00 UTC 2016
Doesn't look like it but are you passing a USB controller in for it? Can't
really see how you're using audio
On Dec 16, 2016 2:39 PM, "Brandon Ganem" <brandonganem at gmail.com> wrote:
> Hi all,
> I've got a Windows 10 VM on top of arch linux. It appears that after some
> period of time my audio / video loses sync for long running videos (youtube
> for example). Switching audio devices in "sound options" in windows causes
> the video to sync back up to the audio.
>
> The audio does not appear to be distorted, it's almost as if the video
> slows down by a frame or two and over time that's enough to drop the sync.
>
>
>
> Here's my XML:
> <domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0
> '>
> <name>win10_gaming_1</name>
> <uuid>01bd2ed1-b465-4eba-b6e4-47c6ac8171c6</uuid>
> <memory unit='KiB'>16777216</memory>
> <currentMemory unit='KiB'>16777216</currentMemory>
> <vcpu placement='static'>12</vcpu>
> <iothreads>2</iothreads>
> <iothreadids>
> <iothread id='1'/>
> <iothread id='2'/>
> </iothreadids>
> <cputune>
> <vcpupin vcpu='0' cpuset='2'/>
> <vcpupin vcpu='1' cpuset='3'/>
> <vcpupin vcpu='2' cpuset='4'/>
> <vcpupin vcpu='3' cpuset='5'/>
> <vcpupin vcpu='4' cpuset='6'/>
> <vcpupin vcpu='5' cpuset='7'/>
> <vcpupin vcpu='6' cpuset='8'/>
> <vcpupin vcpu='7' cpuset='9'/>
> <vcpupin vcpu='8' cpuset='12'/>
> <vcpupin vcpu='9' cpuset='13'/>
> <vcpupin vcpu='10' cpuset='14'/>
> <vcpupin vcpu='11' cpuset='15'/>
> <emulatorpin cpuset='0-1'/>
> <iothreadpin iothread='1' cpuset='0'/>
> <iothreadpin iothread='2' cpuset='1'/>
> <iothreadsched iothreads='2' scheduler='batch'/>
> </cputune>
> <os>
> <type arch='x86_64' machine='pc-i440fx-2.5'>hvm</type>
> <loader readonly='yes' type='pflash'>/usr/share/edk2.
> git/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>
> <nvram template='/usr/share/edk2.git/ovmf-x64/OVMF_VARS-pure-efi.fd
> '>/var/lib/libvirt/qemu/nvram/win10_gaming_1_VARS.fd</nvram>
> <boot dev='hd'/>
> </os>
> <features>
> <acpi/>
> <hyperv>
> <relaxed state='off'/>
> <vapic state='off'/>
> <spinlocks state='off'/>
> </hyperv>
> <kvm>
> <hidden state='on'/>
> </kvm>
> </features>
> <cpu mode='host-passthrough'>
> <topology sockets='1' cores='6' threads='2'/>
> </cpu>
> <clock offset='localtime'>
> <timer name='hypervclock' present='no'/>
> </clock>
> <on_poweroff>destroy</on_poweroff>
> <on_reboot>restart</on_reboot>
> <on_crash>destroy</on_crash>
> <devices>
> <emulator>/usr/sbin/qemu-system-x86_64</emulator>
> <disk type='file' device='disk'>
> <driver name='qemu' type='raw' cache='writethrough'/>
> <source file='/flash/win_gaming_1.img'/>
> <target dev='vda' bus='virtio'/>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x09'
> function='0x0'/>
> </disk>
> <disk type='file' device='disk'>
> <driver name='qemu' type='raw' cache='writethrough'/>
> <source file='/vmstore/steam/gaming_1/steam_library.img'/>
> <target dev='vdb' bus='virtio'/>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x0a'
> function='0x0'/>
> </disk>
> <controller type='pci' index='0' model='pci-root'/>
> <controller type='virtio-serial' index='0'>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x04'
> function='0x0'/>
> </controller>
> <controller type='usb' index='0' model='piix3-uhci'>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x01'
> function='0x2'/>
> </controller>
> <interface type='bridge'>
> <mac address='52:54:00:a0:41:92'/>
> <source bridge='br0'/>
> <model type='virtio'/>
> <rom bar='off'/>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x02'
> function='0x0'/>
> </interface>
> <input type='mouse' bus='ps2'/>
> <input type='keyboard' bus='ps2'/>
> <memballoon model='virtio'>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x07'
> function='0x0'/>
> </memballoon>
> </devices>
> <qemu:commandline>
> <qemu:arg value='-device'/>
> <qemu:arg value='ioh3420,bus=pci.0,addr=1c.0,multifunction=on,port=1,c
> hassis=1,id=root.1'/>
> <qemu:arg value='-device'/>
> <qemu:arg value='vfio-pci,host=02:00.0,bus=root.1,addr=00.0,multifunct
> ion=on,x-vga=on'/>
> <qemu:arg value='-device'/>
> <qemu:arg value='vfio-pci,host=02:00.1,bus=root.1,addr=00.1,multifunct
> ion=on'/>
> <qemu:arg value='-device'/>
> <qemu:arg value='vfio-pci,host=00:14.0,bus=root.1,addr=00.2,multifunct
> ion=on'/>
> <qemu:arg value='-device'/>
> <qemu:arg value='vfio-pci,host=00:1a.0,bus=root.1,addr=00.3,multifunct
> ion=on'/>
> <qemu:arg value='-device'/>
> <qemu:arg value='vfio-pci,host=00:1b.0,bus=root.1,addr=00.4,multifunct
> ion=on'/>
> </qemu:commandline>
> </domain>
>
>
> LSPCI:
> 02:00.0 VGA compatible controller: NVIDIA Corporation GM206 [GeForce GTX
> 960] (rev a1) (prog-if 00 [VGA controller])
> Subsystem: Micro-Star International Co., Ltd. [MSI] Device 3202
> Physical Slot: 4
> Flags: bus master, fast devsel, latency 0, IRQ 26, NUMA node 0
> Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
> Memory at c0000000 (64-bit, prefetchable) [size=256M]
> Memory at d0000000 (64-bit, prefetchable) [size=32M]
> I/O ports at e000 [size=128]
> Expansion ROM at fb000000 [disabled] [size=512K]
> Capabilities: [60] Power Management version 3
> Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Capabilities: [78] Express Legacy Endpoint, MSI 00
> Capabilities: [100] Virtual Channel
> Capabilities: [258] L1 PM Substates
> Capabilities: [128] Power Budgeting <?>
> Capabilities: [420] Advanced Error Reporting
> Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1
> Len=024 <?>
> Capabilities: [900] #19
> Kernel driver in use: vfio-pci
> Kernel modules: nouveau
>
> 02:00.1 Audio device: NVIDIA Corporation Device 0fba (rev a1)
> Subsystem: Micro-Star International Co., Ltd. [MSI] Device 3202
> Physical Slot: 4
> Flags: bus master, fast devsel, latency 0, IRQ 51, NUMA node 0
> Memory at fb080000 (32-bit, non-prefetchable) [size=16K]
> Capabilities: [60] Power Management version 3
> Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Capabilities: [78] Express Endpoint, MSI 00
> Kernel driver in use: vfio-pci
> Kernel modules: snd_hda_intel
>
> 00:1b.0 Audio device: Intel Corporation C610/X99 series chipset HD Audio
> Controller (rev 05)
> Subsystem: ASRock Incorporation Device 1151
> Flags: bus master, fast devsel, latency 0, IRQ 22, NUMA node 0
> Memory at fb330000 (64-bit, non-prefetchable) [size=16K]
> Capabilities: [50] Power Management version 2
> Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
> Capabilities: [100] Virtual Channel
> Kernel driver in use: vfio-pci
> Kernel modules: snd_hda_intel
>
> 00:1d.0 USB controller: Intel Corporation C610/X99 series chipset USB
> Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI])
> Subsystem: ASRock Incorporation Device 8d26
> Flags: medium devsel, IRQ 18, NUMA node 0
> Memory at fb337000 (32-bit, non-prefetchable) [size=1K]
> Capabilities: [50] Power Management version 2
> Capabilities: [58] Debug port: BAR=1 offset=00a0
> Capabilities: [98] PCI Advanced Features
> Kernel driver in use: vfio-pci
> Kernel modules: ehci_pci
>
> 00:1a.0 USB controller: Intel Corporation C610/X99 series chipset USB
> Enhanced Host Controller #2 (rev 05) (prog-if 20 [EHCI])
> Subsystem: ASRock Incorporation Device 8d2d
> Flags: bus master, medium devsel, latency 0, IRQ 18, NUMA node 0
> Memory at fb338000 (32-bit, non-prefetchable) [size=1K]
> Capabilities: [50] Power Management version 2
> Capabilities: [58] Debug port: BAR=1 offset=00a0
> Capabilities: [98] PCI Advanced Features
> Kernel driver in use: vfio-pci
> Kernel modules: ehci_pci
>
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