[SeaBIOS] VGA Option ROM not set up correctly when loaded by coreboot and not SeaBIOS

Paul Menzel paulepanter at users.sourceforge.net
Mon Mar 18 18:44:17 CET 2013

Am Montag, den 18.03.2013, 15:13 +0100 schrieb Christian Gmeiner:
> 2013/3/18 Paul Menzel <paulepanter at users.sourceforge.net>:

> > using the AMD/ATI based ASRock E350M1 [1] with coreboot and SeaBIOS
> > as a payload and GRUB 2 (1.99-27 from Debian Sid/unstable) on
> > the hard drive, letting coreboot load the VGA Option ROM and disabling
> > »Option ROMs« in the menu »BIOS interfaces«
> >
> >             config OPTIONROMS
> >                 bool "Option ROMS"
> >                 default y # I set it to n.
> >                 help
> >                     Support finding and running option roms during POST.
> >
> > I only see »AMD Wrestler …« printed to the screen (from the VGA Option
> > ROM loaded by coreboot I guess) and I neither see the SeaBIOS header(?)
> > with version nor the bootmenu. GRUB 2 does not show its (terminal) menu
> > either and just shows funny, colorful characters covering the whole
> > screen.
> http://www.coreboot.org/SeaBIOS#coreboot - do not load the vga option rom in
> coreboot - do it in seabios.

Yes, thanks. Though I assumed »best results« would mean, that when using
coreboot for loading the VGA Option ROM, that it might decrease
performance or something like that and not that Linux does not find the
ROM at all. If that is a known issue, a note should be added to the
Kconfig description or if coreboot is chosen as a target, then the
Option ROM option should be enabled automatically, right? If yes, please
say so and I am going to try to come up with a patch.


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