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Passthrough iGPU (no.lastname.nz)
submitted 1 year ago by to c/proxmox@lemmy.world
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OK, this is really annoying...

I have an intel based PC that I use as a server that is sitting under the lounge TV that I was using to drive the TV with a linux VM using pci pass-through of the iGPU.

Every thing was working well, then all of a sudden there was no output to the TV. The iGPU still works fine during boot.

I have just updated proxmox to the latest, and no better results.

I sometimes will get it to work on a new install of a vm, but on reboot of the vm it all stops.

Any thoughts on where/what to look at?

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[–] 1 point 1 year ago* (last edited 1 year ago)

If you're passing the iGPU to the VM then the host can't use it if the VM is on.

If your host supports SR IOV, then have a look at this repo: https://github.com/strongtz/i915-sriov-dkms

Installing this on Proxmox and your guest means the guest(s) and host to use the iGPU at the same time.

I'm not sure if it's in mainline somewhere but I had to install this DKMS to get it working.

Just realised your driving the TV with a VM. This probably isn't relevant then.

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