[Guide] Ryzen 5800H IGPU Passthrough HDMI Windows11 HTPC

[jun3280]

Thank you very much @jun3280, you are a star!
I've spent days trying different things and I did everything even following this Guide
https://github.com/isc30/ryzen-7000-series-proxmox?tab=readme-ov-file
Which is almost identical to yours, but it still didn't work. I think my issue was with the AMDGopDriver_5800H.rom file.
I've used this one: https://github.com/isc30/ryzen-7000-series-proxmox/blob/main/AMDGopDriver_5800H.rom
Another thing I did, was install the AMD drivers while using the Windows RDP app instead of using the Console VNC (I am not sure if this makes a difference)
And it didn't work for me.

@thebigbo Pardon my comprehension, but did you end up getting everything working in the end? If so - congrats!

 

[jun3280]

First of all, wonderful guide and thank you for all your work (and the work of all those referenced)...

I ran into a snag on the vbios dump script, which gives me a file or directory does not exist error (even though the script certainly does). I believe it is because the location /sys/firmware/acpi/tables/VFCT does not exist.

In the meantime, I've got error 43 with the resetbugfix running, the Rom referenced in the audio device, and I've been using a 5700U vbios for lack of the knowledge to get the one from my own system.

I am very novice with Proxmox, trying to get a 5500GT running directly to an attached monitor so I can use it to connect to other headless servers when I need to and not have my whole gaming rig running just to use a browser.

@QS-Data, the vbios part should definitely work. Try the steps again, and go to the original link here : https://github.com/isc30/ryzen-7000-series-proxmox to grab the code.

 

[QS-Data]

@QS-Data, the vbios part should definitely work. Try the steps again, and go to the original link here : https://github.com/isc30/ryzen-7000-series-proxmox to grab the code.

View attachment 76852

View attachment 76853

I ran all the opening commands again, and I'm back at the vbios setup, with the vbios.c copied (I've done so from your guide and the original git...

When I compile and run vbios, I get 'No such file or directory', even though vbios exists, which I believe is because vbios.c is looking for a folder in the firmware tables that does not exist:


Edit... added screenshot confirming the file VFCT is not there.

 

[jun3280]

@QS-Data just asking, but did you install GCC?




Secondly, in my screenshot I run the two commands separately. Not sure if that makes a difference.

 

[QS-Data]

@QS-Data just asking, but did you install GCC?

View attachment 76864


Secondly, in my screenshot I run the two commands separately. Not sure if that makes a difference.
View attachment 76865

Thanks for the quick reply!

I do have gcc installed and vbios compiled... it does try to run, but throws an error because VFCT does not exist:

The vbios script is meant to take the information from that file, from what I can tell, so I'm at a loss to determine why me setup is missing that file.

Edit (will add edit to my original response), I was never able to extract the vbios with the script above as it assumes a file exists that I don't have.

However, I was able to get the igpu passthrough working, and the issue was that I did not have the correct vbios for the vga and audio. I followed the method in https://github.com/isc30/ryzen-7000-series-proxmox/discussions/18 that uses uefi bios updater to extract the vbios from the mobo bios update file (prime b350 plus in my case).