My laptop has a 4090 and the firmware is based on coreboot - all works, except G-Sync

[ilikenwf]

From poking around in the proprietary version of my machine's bios I see that there are some DXE modules that appear to handle the certification for GSync and the license. I was wondering if it is the vbios or the drivers that interact either with the UEFI, or the SSDT somewhere to determine whether or not GSync is available?

All the GPIO settings are correct and everything works perfectly, just save for gsync, and was wondering if anyone could point me in the correct direction?

I can provide more answers and information as needed, of course. Thank you!