How do i get 2 graphics cards in 2 different IOMMU groups?


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Hello,

 

I am new to unRaid and trying to set up two VM's kinda like "two gamers one pc" but in a little different use case. only i can't get any VM to run on a display. or get booth VM running on deferent graphic cards.

 

IOMMU group 1

00:01.0 PCI bridge [0604]: Intel Corporation Skylake PCIe Controller (x16) [8086:1901] (rev 05)

00:01.1 PCI bridge [0604]: Intel Corporation Skylake PCIe Controller (x8) [8086:1905] (rev 05)

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM204 [GeForce GTX 970] [10de:13c2] (rev a1)

01:00.1 Audio device [0403]: NVIDIA Corporation GM204 High Definition Audio Controller [10de:0fbb] (rev a1)

02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK106 [GeForce GTX 660] [10de:11c0] (rev a1)

02:00.1 Audio device [0403]: NVIDIA Corporation GK106 HDMI Audio Controller [10de:0e0b] (rev a1)

IOMMU group 2

 

 

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My understanding is that first you would want to try another slot on the motherboard if there is one and it's available.

 

The next thing you could try would be enabling the pcie acs override in vm manager settings in the advanced view. I do not know if there are any dangers in doing this and I think it's considered a last resort option.

 

I am new to this so someone with more knowledge might have a better idea or be able to clarify anything I've mentioned.

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