Proxmox - passthrough

I have build a proxmox server with whatever I have at home (non server hardware), the only problem I have is setting up passthrough. Does anyone know if passing an integrated graphics works or does it have to be an external dedicated graphic card. I have also checked that the BIOS supports Intel VT-d

reads like you need bunch of tweaks to prevent the host from using the graphics.

https://pve.proxmox.com/wiki/PCI_Passthrough

i definitely follow that, i probably missed something else then… Thanks

Another thread to explore.