Passing through discrete GPU on optimus laptop

Operating Systems & Open Source Linux
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1

I have an Asus GS65 Stealth Thin laptop with a GTX 1070 Max Q GPU and an Intel Core i7-8750H CPU.
I’m running Arch linux on a single 1tb NVME SSD. Windows 10 is installed and contained to the second NVME SSD.

IOMMU groups are solid, vt-d is on, etc.
I’ve read through the wiki, got VFIO to grab the GPU, no errors on boot just a blackscreen (external screen connected to displayport wired straight to the nvidia DGPU) tried adding a spice display to the vm and it was just black screen as well.

Is what I’m doing even feasable? The end result is I would like arch to run only on the intel GPU with the Windows 10 vm running on the 1070 semi headless (with a 1080p 144hz hdmi dummy plug) with looking glass.

2

It is, on some models. Laptops have their own extra hoops to jump through and potential issues.

See this github page for how some people have gotten passthrough on laptops to work-