> i named the 2000M vbios rom 2000m.rom You have to call it exactly like I said: pci{vendorid},{deviceid}.rom, otherwise it won't work.
> i cound not extract it with uefitool. Why, what's the problem with uefitool? > I cannot get any output on VGA/Displayport ... also if i choose the > NVram option "discret only" i get a black screen. I'd suggest you to make sure that the dGPU works in "Dual Graphics" mode first. > any help? > > > Am 30.09.2018 um 18:32 schrieb Evgeny Zinoviev: >> On 09/30/2018 02:33 PM, kinky_nekoboi wrote: >> >>> thanks i will try to buile a rom from master tree than. >>> is there any tutorial to insert the right vgabioses into the rom >> 1. Extract VGA ROM from your UEFI dump as explained here: >> https://www.coreboot.org/Intel_Sandybridge_Build_Tutorial#Nvidia_Option_ROM >> 2. Run `lspci -nn` on your machine with dGPU enabled, you can do that >> under Lenovo BIOS or under latest coreboot with CMOS option >> "hybrid_graphics_mode" set to "Dual Graphics" (the PCI device is not >> hidden in this case). >> 3. Add VGA ROM to coreboot image: `cbfstool build/coreboot.rom add -t >> optionrom -n pci10de,0ffc.rom -f vgabios.rom`, where 10de is the vendor >> id and 0ffc is the device id of your GPU. >> >> AFAIK the nvidia driver doesn't work at the moment but you can use >> nouveau. Optimus is not supported officially yet but is sort of >> available: https://review.coreboot.org/#/c/coreboot/+/28380/ >> -- coreboot mailing list: coreboot@coreboot.org https://mail.coreboot.org/mailman/listinfo/coreboot