Is anyone else using Fusion on a Mac with an eGPU setup?
VMs running Windows 10 for example, are normal when used on the Mac without eGPU connected, using discrete or built-in graphics. This is on a recent ThunderBolt 3 enabled MacBook Pro.
As soon as I connect a TB3 external GPU to the Mac, and restart the VM, the VM is almost unusable. Opening Explorer for example happens very slowly, and the window draws so slowly you actually see blocking and pixelation.
Moving the mouse is laggy. The dot animation when Windows is booting is slow.
I've tried enabling "Prefer external GPU" in Finder for Fusion, and also setting the mks.allowblacklisteddrivers(?) setting in the VMX, no difference.
I've also tried creating a brand new Windows 10 VM with the eGPU connected and enabled, same thing.
Parallels Desktop for what it's worth works fine under the same conditions. In fact, the same native Fusion VM, opened and converted by Parallels works fine.
Guessing it's a shortcoming on the fusion side, but just wondering if there's a workaround or known issue.