my new VM .conf :
I added cpu: host,hidden=1,flags=+pcid and hostpci0: 01:00,pcie=1,x-vga=on
root@ATLANTA:~# nano /etc/pve/qemu-server/702.conf
GNU nano 3.2 /etc/pve/qemu-server/702.conf
agent: 1
audio0: device=intel-hda,driver=spice
bios: ovmf
bootdisk: virtio0
cores: 4
cpu...