Qubes 4.3.1 installation black screen (RTX 4090) – ASUS Z790 iGPU + GPU passthrough setup

I tried but I failed,

sudo nano /etc/default/grub

rd.qubes.hide_pci=01:00.0,01:00.1 rd.driver.blacklist=nouveau

sudo grub2-mkconfig -o /boot/grub2/grub.cfg

sudo vim /etc/X11/xorg.conf.d/01-intel.conf

Section “Device”
Identifier “IntelGPU”
Driver “modesetting”
BusID “PCI:0:2:0”
EndSection

I can see the grub interface, but after entering it, it shows no signal. The bios setting has been changed to cpu display, the IGPU is enabled, and the HDMI cable has been plugged into the motherboard interface.

@neowutran @tze @corporateblush