Is there any way to extract the integrated graphics VBIOS?

Support
1

I am trying to use integrated graphics passthrough in PVE, which requires a VBIOS.

But I tried multiple ways and they all failed. Running cat /sys/devices/pci0000:00/0000:00:02.0/rom > vbios.rom in Debian Live gives an empty file, and using GPU-Z in Windows To Go also fails (Intel official drivers are installed).

After searching for information, maybe this is related to UEFI. But I have flashed MrChromebox UEFI Full ROM Firmware, which does not have Legacy boot options.

Is there any other possible way?

My device is Asus Chromebox 3 (CN65) / I7-8550U / UHD 620

2

There is no vbios. Graphics initialization is done with UEFI GOP.

3

you need to use a different method then. The use of VGA BIOS for display init is long, long gone.

4

Thank you for the information! I will look for updated information