When installing and starting GPU-Z in a GPU pass-through environment with an NVIDIA GTX7050Ti (or an RTX4060Ti) on ProxmoxVE8.4 with X870E and Ryzen9 9950X, the PCI-E link speed is displayed as "PCI-Express".
If you then try to shut down, you will almost always get a BSOD (VIDEO_DXGKRNLFATAL_ERROR).
If you select a CPU with Zen architecture or earlier in Proxmox, the PCI-E link speed is displayed properly and you can shut down normally.
It seems that CPUs that support PCI-E Gen3 or later are no longer supported.
In ProxmoxVE with an Intel Corei5 14500, even if you set the CPU to "host", the PCI-E link speed is displayed properly and you can shut down normally.
If you then try to shut down, you will almost always get a BSOD (VIDEO_DXGKRNLFATAL_ERROR).
If you select a CPU with Zen architecture or earlier in Proxmox, the PCI-E link speed is displayed properly and you can shut down normally.
It seems that CPUs that support PCI-E Gen3 or later are no longer supported.
In ProxmoxVE with an Intel Corei5 14500, even if you set the CPU to "host", the PCI-E link speed is displayed properly and you can shut down normally.