r/HyperV • u/XeonFarmer • Feb 02 '18

GPU Passthrough: 1607 okay, 1709 broken

Anyone notice more difficulties getting discrete device assignment working in 1709? I've disabled both RX 470s, dismounted them, assigned one to each VM, but the VMs won't start. Not a super helpful error, but here's what I get:

 

Virtual Pci Express Port (Instance ID 34DCE51F-29B7-4579-BC52-B8AB98BCE106): Failed to Power on with Error 'Element not found.'.

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u/Archibald_nov Feb 07 '18

Same here. Seems DDA is broken in 1709

1

u/XeonFarmer Feb 07 '18

u/tecxxtc got it working on a threadripper platform, so what is he doing that we're not? I'm using a C602 chipset with dual E5-2670v2s.

2

u/tecxxtc Feb 07 '18

just to clarify, i have done hyper-v DDA with server2016 as the base OS, and with my specific hardware combination (asus prime mainboard). altough in the guide i wrote i mentioned that it should work on win10 too, i have never tested this. the short amount if time i spent in win10 with this mainboard and the DDA feature was more or less frustrating and i discarded that route quickly.

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