[coreboot] Intel G41 - Asrock G41M-GS: no coreboot screen output from Intel GPU on VGA

Julien Viard de Galbert jviarddegalbert at online.net
Thu Aug 23 16:30:10 CEST 2018

> Le 23 août 2018 à 15:29, h42 at memeware.net <mailto:h42 at memeware.net> a écrit :
> On 2018-08-16 20:07, Nico Huber wrote:
>> On 16.08.2018 12:27, h42 at memeware.net <mailto:h42 at memeware.net> wrote:
>>> On 2018-08-15 21:22, Nico Huber wrote:
>>>> Hi,
>>>> On 14.08.2018 13:41, h42 at memeware.net <mailto:h42 at memeware.net> wrote:
>>>>> So it seems to have detected that my screen is 1920*1080. GPU + screen
>>>>> detection seems to be working. But i dont get any coreboot output on the
>>>>> screen.
>>>> you can set CONFIG_DEBUG_ADA_CODE to enable verbose messages in
>>>> libgfxinit. At least this would show if the GFX hardware is indeed
>>>> enabled or if it bails out for some reason.
>>>> When you set drm.debug=6 in your kernel command line, there'll also
>>>> be a lot of information in the log about what configuration Linux
>>>> finds before (re)initializing graphics.
>>>> Hope that helps,
>>>> Nico
>>> The new additional output:
>>> [...]
>> Looks all good to me. If you'd provide a full log (including SeaBIOS)
>> with loglevel `Debug`, that might help to trace it down. Please also
>> attach your .config (just to be sure, I know you used the defaults but
>> those can change between code revisions).
>> Nico
> I have searched now for some time how to enable debug loglevel. I have found "Default console log level" in section "Console" but that "Depends on: !CONSOLE_OVERRIDE_LOGLEVEL [=n]". I cant find a way to set CONSOLE_OVERRIDE_LOGLEVEL to =y in make menuconfig. How can that be done?

You are reading it wrong:
It depends on CONSOLE_OVERRIDE_LOGLEVEL been =n, because of the « ! » 
And it is =n (according to the «  [=n] » text.

So go to menu « Console » and set «  Default console log level » to 8:SPEW
That’s for the coreboot part, for seabios I don’t know much.

Hope this helps

Julien Viard de Galbert - jviarddegalbert at online.net <mailto:jviarddegalbert at online.net>
Online / Scaleway
Looking for an amazing job? Join us NOW ! https://careers.scaleway.com/ <https://careers.scaleway.com/>

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