[coreboot] How to start GRUB2 in graphic mode as primary payload?

Nico Huber nico.h at gmx.de
Sun Mar 25 15:38:02 CEST 2018


On 25.03.2018 14:49, G wrote:
> On 2018-03-25 12:15, Nico Huber wrote:
>> Hello Giulio,
>>
>>   CONFIG_GENERIC_LINEAR_FRAMEBUFFER
>>
>> as opposed to the
>>
>>   CONFIG_VGA_TEXT_FRAMEBUFFER=y
>>
>> that you have currently selected.
>>
>> I'm not sure if you have to configure anything in GRUB too, to get the
>> background image to work. I would guess that it just works, though.
>>
>> Nico
> 
> Hello, thanks for your help.
> 
> I have made the change you told me and rebuilt coreboot but it sill
> looks like Grub is not in graphic mode. If i use the 'videoinfo' command
> the list is still empty wich should mean that Grub can't find any
> display/graphic info.

Sorry, I'm not an expert for GRUB. But what I reckon from the code is
that you shouldn't be able to see an empty list (even in VGA text mode
videoinfo should report just that). Unless you are watching the output
from a debug console and your screen is blank, ofc.

Nico



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