[coreboot] Lenovo X1 carbon 3460 Screen stays black

[John Lewis]

Howdy,

In your config file you have:

# CONFIG_VGA_BIOS is not set

in coreboot, which will mean that coreboot doesn't setup the display, 
but in your SeaBIOS config you have:

CONFIG_SEABIOS_VGA_COREBOOT=y

which will try to reuse whatever coreboot has setup. So as you might 
understand, this causes a bit of a catch 22. :)

Either tell coreboot to run the BIOS *or* set the VGA Hardware Type to 
"none" in SeaBIOS.

Other common problems are getting the pci id's for your graphics card 
wrong and using the wrong offset for SeaBIOS to find CBFS (so it can 
run things like VGA ROM's).

It would be helpful if you had a distro already loaded, as that will 
try to initialise the display even if the BIOS hasn't, which can be 
handy (so you can get and see cbmem output to figure out what is wrong)

After all that, my first answer may not be the solution and there may 
also be something else stopping the system getting as far as running 
the VGA BIOS.

Hope this helps,

John.

On Sat, 5 Aug, 2017 at 2:40 PM, Jo <advertising at seefelder-web.de> wrote:
> Hello Guys,
> 
> I wanted to get coreboot on my Lenovo X1 Carbon 1gen (3460) ,
> 
> so i followed the tutorial, however after flashing it, the screen 
> stayed black.So i flashed the Vendorbios back and im kinda stuck now, 
> help would be really appreciated.
> This is my config file (if you care to have a look)
> 
> https://pastebin.com/FYrsmXPb
> and the output of inteltool -m (spd data)
> 
> https://pastebin.com/JZQYb3p3
> also the output of inteltool -g
> 
> https://pastebin.com/wDNRxM4U
> 
> and inteltool -G
> 
> https://pastebin.com/zJV3dE8A
> 
> cheers
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