MacMini GPU pass thru. I'm stumped

[aussiemartin]

I hope someone can help me get this working.
I have a late 2014 16G MacMini with one of Apple's Fusion drives.

It's been a great little workhorse and I converted it to Proxmox about 4 years ago. Mainly to run Windows programs.

My issue is trying to get it's Haswell-ULT Integrated Graphics Controller passed through to any of my Windows Server 2019 or Windows 11 VMs.

I've been through all the documentation as best I can (I'm 66 years old so cut me some slack) and ensured necessary modules and command line option are in place correctly.

The one thing I can't check is whether the BIOS is correctly configured since Apple hides that from the end-user.

Adding a PCI Device and selecting the Integrated Graphics Controller either resets the Proxmox server or makes the VM unresponsive si I'm guessing it can only be the BIOS.

Hardware config for the VM is -





Is there anything else I can do to get GPU pass-through to correctly function?
Thanks heaps for anyone lending a hand
Martin

 

[Marcusmax]

Sorry to jump on your thread as I have no solution but I do have a very similar question. Hope that's ok - it might get some activity going at least!

I am the same age (so please cut me some slack too!) with practically the same computer but with 8GB ram and an SSD. My GPU is also integrated/built-in but is an Intel Iris 5100. Unlike Martin I haven't gone through all the documentation yet because I first wanted to find out if it is even possible to pass-through an integrated, non-PCI GPU. The main info page I found seems to only address PCI pass-through. I hope someone can offer some help.

Have you tried accessing the EFI and changing any relevant settings there, if that's even possible?

Thanks, Mark

 

[Marwood]

Hi!

Jumping in here too but not with great news, I too have a 2014 MacMini (i5-4308U) that I'm using as a host and I did once try to get GPU passthrough working however without much luck.

This was quite a few years ago so some of these memories are a little hazy so apologies however I believe I set everything up correctly and I could get as far as seeing the GPU as a PCI device to add but similar to OP I'm sure whenever I booted the VM it either didn't work or caused the Proxmox host to crash and reboot. I seem to recall getting strange network issues where the entire network on the host would stop working randomly for minutes at a time then suddenly come back to life.

At the time having my host back and working correctly was way more important then GPU passthrough so I undid everything and I've never gone back to try again.

I am almost at the point of finally retiring my Macmini as a host so if and when I do I promise I'll kick it around as a test and see if I can finally get passthrough working and report back here!