Combine this with Looking Glass and you can have windows running, fully 3d accelerated, as literally just a window on your Linux desktop - sound and all (which LG doesn't handle (yet)). This means I can play audio in my guest (Windows 10 in this case) but hear the output on my host Linux system and even control the output as if the guest were 'just another application'. The building of this forked version of QEMU has finally achieved me glitchfree audio for a passed through guest using PulseAudio. This is all covered in the link, don't skip a section thinking you know better like I did! Build forked QEMU A couple of gotchas for me included making sure change my qemu XML schema validation and to modify libvirt to run as my user, not root. Setting up PulseAudio with a libvirt guest Full credit for the actual solution goes to him. In this post I'm going to cover the solution proposed by u/spheenik at r/vfio on reddit to resolve audio crackling which has plagued my experiences with VFIO for literally years. Getting a GPU passed through these days is almost trivially easy and thanks to the Arch Wiki is even easier.
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June 2023
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