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

Nico Huber nico.h at gmx.de
Wed Aug 15 23:22:59 CEST 2018


On 14.08.2018 13:41, 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,

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