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I have a sneaking suspicion that it won't work without the ARC gpu being the primary card in the system. (In the first PCI-E slot) Are you able to test that theory?
Yeah, you're correct. It now works. Though I left it at the bottom slot and just took the 3060ti out for now. Though is there a reason why it won't work with the 3060ti in it too. Thanks though it's been bugging me all week haha.
I was unable to move the 3060ti lower as the card is too big and the slot is too low on the motherboard for it to fit. I did try the latest nightly build and with the 3060ti at the top and the UHD 770 turned on with the A380 it still doesn't seem to want to use the Deep Link Hyper Encode.
What motherboard are you using? This ***might*** be something you could control from the UEFI; otherwise you'll be out of luck and have to live without the NVIDIA card altogether if you want to use HyperEncode is my guess.
Or, really just guessing here, maybe setting the Main Display in Windows to a monitor connected to the Intel dGPU (ARC) might help?