bogdal.grzegorz@tutanota.com:

Hello,

is there a known solution to my problem?

After flashing the coreboot and booting the computer, I can use the integrated GPU through VGA, but initialization of amdgpu fails and DisplayPort external GPU isn't recognized by the system. It appears in lspci, though.

I can provide better logs tommorow, but that's part of what appeared in dmesg:

amdgpu get bioss error acpi vcft image header truncated

amdgpu kernel bo map failed [...] error -22

amdgpu_vram_scratch_init failed [...] error -22

fatal error in GPU initialization

My specs:

F2A85-M

A10-6800k with integrated Radeon HD 8670D

AMD RX 570 a external GPU

I've used coreboot with Seabios

If there are some known solutions to the problem, please let me know. Otherwise I could use a list of files and command outputs I should provide to give better information. Thank you for your help.

Take a look at this thread

https://www.mail-archive.com/coreboot@coreboot.org/msg52644.html, and

the unofficial patches linked in

http://dangerousprototypes.com/docs/Lenovo_G505S_hacking#Discrete_GPU_support.

That vcft image header truncated message looks familiar.

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