i did this ... but i named the 2000M vbios rom 2000m.rom ... i fetched the vbios from another side because i cound not extract it with uefitool.
I cannot get any output on VGA/Displayport ... also if i choose the NVram option "discret only" i get a black screen.
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
- 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/