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ACPITOOL v1.1 (Announce)

posted by tkchia Homepage, 04.04.2022, 19:55
(edited by tkchia on 04.04.2022, 20:09)

Hello RayeR,

> And could you easily load VGA BIOS from an image file instead of embedded
> UEFI FW? Just for a case I would be able to find and extract some useful
> VGA BIOS for my 11th gen core to be able to load it without BIOS modding
Yes, that is quite possible — I have not yet implemented it in biefircate, but it should not be too hard. Also, I think more modern PCI-compliant VGA option ROMs can be loaded almost anywhere in base memory (I understand that older VGA ROMs expect to be loaded at 0xc000:0).

> that I cannot do on this machine. But I'm not sure if such VGA BIOS already
> exist for this HW, I'll have to search...
You probably want to check the PCI device id. (e.g. 8086:9bc8) for your particular graphics card. On Linux, lspci -nn should do the job (I am not so sure about other OSes, but there should be a way).

Each PCI-compliant option ROM has a "PCIR" structure that says, among other things, which PCI device id. (or ids.) the option ROM is meant for.

Thank you!

---
https://gitlab.com/tkchia · https://codeberg.org/tkchia · 😴 "MOV AX,0D500H+CMOS_REG_D+NMI"

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