Taako Posted July 10, 2022 Share Posted July 10, 2022 I am trying to pass through my onboard sound to my windows VM. I am on UnRaid 6.9.2 and I managed to get my GPU passed through using ACS override, but even with it set to "both" it doesnt break up the IOMMU group with my onboard sound. What's even weirder is that i cannot even select the iommu group, it's grayed out (see attached image). How do i pass this through if i can't even bind it to VFIO? Quote Link to comment
Squid Posted July 10, 2022 Share Posted July 10, 2022 Because IOMMU group is including the ethernet adapter and the SMBus controller. You need to try to use one of the ACS override options to try and separate the onboard audio controller out. Quote Link to comment
Taako Posted July 11, 2022 Author Share Posted July 11, 2022 (edited) 3 hours ago, Squid said: Because IOMMU group is including the ethernet adapter and the SMBus controller. You need to try to use one of the ACS override options to try and separate the onboard audio controller out. I tried "both" in the ACS override options (as well as Downstream and Multifunction) but they still aren't separated out 😭 Is there any other way to get it separated? Edited July 11, 2022 by Taako Quote Link to comment
JonathanM Posted July 11, 2022 Share Posted July 11, 2022 Easier to split out the audio from the HDMI connection. If acs override won't split them up, then it's probably a motherboard limitation. Quote Link to comment
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