This is a bit of a bragging post, but oh well. I’d like to officially announce brag that I’ve managed to get a modern game (Forza Horizon 4) to run on QubesOS at a stable >75 FPS on a 2K display.
I did not think this was possible to get such good performance, but after so many months spent tweaking I have come to think that it’s actually possible and voila, here it is!
A large part of my set-up is based on @neowutran 's amazing Gaming HVM write-up, although I’ve made quite a few modifications and tweaks to make games run way faster and in a more stable way. If there’s interest, I can make a write-up about this.
I think once I find some time and release the rest of my tweak utils (so probably a month or two) I’ll make two posts. One will be a write-up on how to create a Gaming HVM with Optimus (based on neowutran’s guide) and the second one will be how to increase Qubes performance in general, as most of the tweaks I applied served to reduce load by other qubes and not necessarily “tweak” the gaming qube itself.
Nice thread. I have a beefy laptop with rtx4070 GPU in it. However, using PCIe passthrough to debian 13 qube with all the nvidia-driver packages installed only resulted in me playing Cyberpunk 2077 in 30 FPS (which sucks).
I would be very much interested in how I can improve my performance as well.
Alright. I have been using the proprietary nvidia-driver package (and its deps, suggested packages, etc.) on debian 13. I have my doubts about nvidia-open performing better than the proprietary one.
Don’t be fooled by “open” name, it is still proprietary driver. Only the kernel<->driver interface is open. The driver itself is a closed source blob, but it is a more modern/recent implementation than the non “open” one. More open than the previous one but far from fully open source
I played even emulated console games in high fps with gpu passthrough years ago. On a maxed desktop with 2 amd and 1 modded nvidia for better reset compatibility.
No, this is about NVIDIA Prime Offload with GPU passthrough. I’m glad to hear you managed to achieve high performance as well! I made this post as I’ve had trouble achieving good performance (without insane specs) and it felt good to finally make it work. It also serves as a “teaser” for the guides I’m gonna write and I should probably get around to doing that… As always, though, life caught up and I need to find some more time one day.
Yes, but not only. Optimus/PRIME Offload (or maybe just “dGPU Offload”, not sure it’s called PRIME on non-laptops) also works on modern desktop platforms, you simply plug your displays into your iGPU and do everything else the same way you would on an Optimus laptop.
