Re: [vfio-users] High GPU PCI-e bus usage resulting in USB audio cutting out

[taii...@gmx.com]

On 02/16/2018 11:29 AM, John Koelndorfer wrote:


There was a patchset released for qemu that greatly improves the emulated
audio device sound quality. It helps with the frequent popping you'd hear
with vanilla qemu. See this thread on reddit:
https://www.reddit.com/r/VFIO/comments/74vokw/improved_pulse_audio_driver_for_qemu/

It's not upstreamed so you will need to apply it yourself. Alternatively if
you are using Arch Linux, there's a package on the AUR with the patches
already applied:https://aur.archlinux.org/packages/qemu-patched/. I have
been using it for some time without issue.

In my configuration I use an emulated Intel HDA device with output to
pulseaudio.
I am using a cmedia USB audio device not emulated sound (this is a 
server without any video/audio packages on the host), but thanks for the 
info.


On 02/16/2018 07:46 AM, Jayme Howard wrote:


I had this problem, and ended up doing audio over HDMI to the monitor,
which has a jack for a speaker.  Zero audio stuttering since then.  That
was with a 970.  I've since upgraded to a 1080, and haven't retested the
USB thing, but also don't see a need to because this works perfectly.

My screen has no audio out :[

Yeah the video card audio is the best, and it saves a pci-e port (or usb 
port if you use crappy usb audio like me)


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Re: [vfio-users] High GPU PCI-e bus usage resulting in USB audio cutting out

[John Koelndorfer]

There was a patchset released for qemu that greatly improves the emulated
audio device sound quality. It helps with the frequent popping you'd hear
with vanilla qemu. See this thread on reddit:
https://www.reddit.com/r/VFIO/comments/74vokw/improved_pulse_audio_driver_for_qemu/

It's not upstreamed so you will need to apply it yourself. Alternatively if
you are using Arch Linux, there's a package on the AUR with the patches
already applied: https://aur.archlinux.org/packages/qemu-patched/. I have
been using it for some time without issue.

In my configuration I use an emulated Intel HDA device with output to
pulseaudio.

On Thu, Feb 15, 2018 at 5:48 PM, taii...@gmx.com  wrote:

> For some reason when I play games at high enough texture settings where
> there is bursts in bus usage due to not enough VRAM my USB audio stutters
> then cuts out and I need to replug it and restart the game to solve the
> issue - of course it is getting very annoying.
>
> I have set my Geforce 780 to MSI without any improvement.
> If I turn down the texture settings this problem goes away on some games
> but I don't want to.
>
> Any ideas? would using a PCI-e audio device solve this?
>
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