[coreboot] VGA issues on ASUS M4A785T-M

[Kyösti Mälkki]

On Fri, 2011-11-11 at 19:53 +0100, Denis 'GNUtoo' Carikli wrote:
> lspci with BIOS:
> # lspci -s 01:05.0 -vvv
> 01:05.0 VGA compatible controller: ATI Technologies Inc RS880 [Radeon HD 4200] 
> (prog-if 00 [VGA controller])
> 	Subsystem: ASUSTeK Computer Inc. M4A785TD Motherboard
> And lspci With the coreboot:
> 
> #  lspci -s 01:05.0 -vvv
> 01:05.0 VGA compatible controller: ATI Technologies Inc RS880 [Radeon HD 4200] 
> (prog-if 00 [VGA controller])
> 	Subsystem: ATI Technologies Inc Device 0000
>  
> What should I do to change theses PCI address?
> And is it the cause of my problems?


It is not abnormal that coreboot and original bios create different
mappings for PCI addresses. I would leave those PCI addresses alone.

Have you transferred the graphic controllers VGA bios from the original
bios? At least your subsystem vendor/device ID pair does not match.
These steps are required to tell software what type of hardware is
designed around the controller chip.

Kyösti