Complete-Single-GPU-Passthrough VS vfio

I was trying to get single GPU passthrough to work on my RX 6700xt and Ryzen 5 5600 however after following this guidehttps://github.com/QaidVoid/Complete-Single-GPU-Passthrough I can no longer even launch any VMs or create any new ones. I get this error.

Im assuming you're on a single gpu setup and, as such are trying to do single gpu passthrough with a single nvidia card. so you'll likely have to run some libvirt hooks or smth to run scripts to unbind your gpu once you start your vm. In which case id suggest going through these two guides 1 2 which go over completely passing through your single gpu when you start your vm

Thanks for reply. I didn't find the issue, but I decided to install endeaveour just to not reinstall arch every hour and using this guide I managed to make it work. I guess on bare bones system I missed something every time I tried, but I'm not experienced enough to know what I didn't do to run it.

I have a similar use case. I good good guide to follow would be this but I also have my iGPU disabled completely.

not an expert on this, but you can use the single gpu passthrough scripts to unload/reload drivers for host/vm needs. (no reboots) ssh into the desktop pc and test out what works for you. https://github.com/QaidVoid/Complete-Single-GPU-Passthrough what helped me here was unbinding/binding the vtconsoles before unloading/loading drivers again via tty. If you do it directly on the machine, you may lose tty/framebuffer, which is why I suggested ssh.

I used this and it worked. https://github.com/QaidVoid/Complete-Single-GPU-Passthrough

Hello. I have an RX 6600, and I wanted to use single gpu pass through. I followed this guide. Everything worked fine, until I got to installing the drivers. Once they got installed I got a black screen. I know it installed successfully because I used teamviewer to look at my screen from a different PC. Any help would be appreciated.

I was mainly following this guide to setup the VM and scripts: https://gitlab.com/Karuri/vfio

I've successfully set up single GPU passthrough as per https://gitlab.com/Karuri/vfio and https://github.com/joeknock90/Single-GPU-Passthrough .

- and a few other things mentioned here and here,

great thanks for the tip! havnt checked the logs for libvirt as i thought it was an osx issue. im using manjaro host, and have originally installed the vm using this https://github.com/foxlet/macOS-Simple-KVM, and this for the passthrough https://gitlab.com/Karuri/vfio

I used to have an RX580-based single GPU passthrough setup. You likely need the vendor reset module, since hot-plugging Polaris 10 GPUs is a bit buggy and can cause GPU lockups. It might also be worth dumping your GPU bios and configuring libvirt to use it so you get a visible boot screen (tool). I think I mostly followed this guide, however it hasn't been updated in quite a while it seems.

If you're up to the task you can follow this guide to get it working.

vfio-single-gpu-passthrough (this is for single gpu system, I link it for the section regarding hugepages, isolation, pinning & cpu governor which massively improved performance. It use script to dynamically run these only when you start a vm, so you can still use all of your cores when you stop the vm)