amessydatum

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  1. Fixed the problem for me, thanks a lot johnodon. I came by this thread very circuitously so I'm going to leave a few notes and summarize in hope of making this more googleable for others: This gets rid of the crackling, demonic audio issue on linux guests (in my case Ubuntu 16.04) with an Nvidia GPU passthrough using HDMI audio by enabling Message Signaled Interrupts on the card. Simply create the file (as root) `/etc/modprobe.d/snd-hda-intel.conf` and fill it with the following: options snd-hda-intel enable_msi=1 Reboot and the problem should be fixed.