Anything using vanguard such as valorant and league of legends, battleye such as pubg, destiny 2, and rainbow 6 siege, and easy anti cheat such as fortnight blocks virtual machines. Vanguard is especially bad because it will not allow to run the game with Intel-VT/AMD-V enabled even if you are running bare metal as of its last update.

I’m surprised, I was pretty sure anything with Battleye flat out rejected virtualization.

I thought Destiny used Battleye but I must be mistaken on one of these points.

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Most likely everything Steam + VAC or Denuvo. There’s a lot of discussion on that topic around the web.

Sure, but you’ll get diminishing returns most likely as consumer hardware doesn’t really have the resources to scale that way very well if all the VMs are running demanding apps simultaneously.

Even for something like 4 VMs that just do NVenc, there are limits for how many streams the GPU can do. I think there’s another patch that lets you raise that, but at some point you’ll run out of resources quick. Even powerful consumer gear isn’t really designed to be used by more than one user/app and it starts to show the more you virtualize and split those resources.

Yeah unfortunately. 20xx is last generation supported so far via the patch, not sure if support for later cards is coming or not.

I don’t see any performance differences with the vgpu actually. I have more performance bottlenecks with the CPU, and my RAM isn’t the fastest, so I think I’m more CPU limited. Benchmarks I have run that are GPU focused seem to show little to no difference from what the physical card would do.

No, but I think you’d have some problems. Only the host has access to the actual DisplayPort outputs, all the vgpus have virtual displays, I don’t think there’s a way to make them use the physical out.

Why? Product segmentation I suppose. Last I looked, the Virtio project’s efforts were still work-in-progress. The Arch wiki article corroborates that today. Inconsistent behavior across brands and product lines.

What you’re describing is mostly a networking issue. I’m also pretty suspect about your setup and wishes. You definitely don’t work for a large VFX studio, and you’re not using this as described for CAD work. I’m going to guess this entire setup is for your anime and incest rendering farm.

This is a ridiculous question for anyone with this amount of hardware in their home already that’s using it on a daily basis to actually work. You would also not be “running renders” if this was hardware provided by a company you work for.

Whatever is being asked here is for a shady ass person. Don’t help them.

Check out this video

It goes over all of the steps of setting it up.

Yeah, but if you’re this deep into the self hosting rabbit hole what circumstances lead to having an extra GPU laying around without an extra everything else, even if it’s relartively underpowered? You’ll probably be able to upgrade it later by recycling whatever is in your nice PC next time you upgrade something.

At this point most of my household is running some frankenstein of phased out parts just to justify my main build. It’s a bit of a problem, actually.

OK, yeah, that makes sense. And it IS pretty unique, to have a multi-GPU system available at home but just idling when not at work. I think I’d still try to build a standalone second machine for that second user, though. You can then focus on making the big boy accessible from wherever you want to use it for gaming, which seems like a much more manageable, much less finicky challenge. That second computer would probably end up being relatively inexpensive to match the average use case for half of the big server thing. Definitely much less of a hassle. I’ve even had a gaming laptop serve that kind of purpose just because I needed a portable workstation with a GPU anyway, so it could double as a desktop replacement for gaming with someone else at home, but of course that depends on your needs.

And in that scenario you could also just run all that LLM/SD stuff in the background and make it accessible across your network, I think that’s pretty trivial whether it’s inside a VM or running directly on the same environment as everything else as a background process. Trivial compared to a fully virtualized gaming computer sharing a pool of GPUs, anyway.

Feel free to tell us where you land, it certainly seems like a fun, quirky setup etiher way.

I’ve always found the documentation around virtio-GPU and virtgl very lacking, and have never gotten them working. Would love to get pointers if anyone has a good source.

I have a rack server in the garage with a gaming PC in it, 2 PSU’s and the 2 GPU’s mentioned, all running on Debian (which I soon plan to swap to nixos).

The AMD GPU’s is passed through to a windows VM with 8 gigs or so of ram, for VR development in the garage usually, but sometimes is streamed as well.

The second Nvidia GPU goes to my linux machine on Ubuntu just for ease of patched nvidia drivers, a couple virtual monitors with an xconfig like this, and is my daily driver with 16 gigs of RAM.

Both use Virtio drivers for disk, network, and anything else I’m forgetting, Pcie passthrough via KVM/QEMU on the host.

I’d say the latency hangs around 5ms when streaming both at once, and never comes close to saturating the gigabit connection, but I’m sure some optimisations could be done somewhere along the line.

Clients run on anything from an Xbox series X to a random PC, hopefully soon an orange pi (worried about latency though).

When I have a workload requiring both GPU’s I just keep 2 moonlight windows open and use the keybinds to unfocus the mouse then alt+tab to swap between them.

I don’t have any complaints, although one time when my thermal setup was worse I left 2 copies Subnautica running for my wife and I to at Nitrox together, and it did start to drop in fps on the Linux machine once we picked it up after an hour or 2 running the games AFK.

Edit to add I’m mostly using this for gaming right now, but its handled everything (within reason) that I’ve tossed at it, but I’m planning on soon setting up this sometime soon also across a couple other PC’s, but as of right now the VM’s feel as if they’re entirely distinct PC’s from an external perspective

Could you explain how? I’m pretty lost in this situation…

I’m using Proxmox with an NVIDIA 1050 GPU that I was passing through to another VM for jellyfin transcoding in docker (I don’t need it anymore), because of that I thought that the drivers were set up correctly.

The guest was Bazzite with 2 cores and 2 GB of RAM, I was not even gaming, just login on steam and updating the system and I had sudden crashes with Bazzite only using 1 GB on the Summary…

I have used Sunshine + Moonlight over fibre + 5G based networks and its worked pretty nicely before. This was over Tailscale and routed over a DERP relay (worse latency, more hops due to CG-NAT). As long as your host internet speeds has good uploads and usable latency as well as your server/desktop connected wired to your router over Ethernet then it usually works well. Does depend on your network but it does work (and pretty well, as long as everything is configured properly), but YMMV.