[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, Taiidan at gmx.com <Taiidan at 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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