Re: [coreboot] Lenovo x230 - vgabios

[Michael Gerlach]

Hi all!

Long time since i started this topic!

As Zaolin mentioned quite some posts earlier UEFITool is the way to go
to get a working vbios option rom.

I got exactly the same file as zaolin attached in the post before.. And
this works wonderful...

For debug and documentation reasons i will attach the working config,
vgabios, pxe rom image (with disabled BANNER_TIMEOUT), the final cbmem
boot log, the old vgabios which i've dumped via /sys/devices and the
smaller one which i got from /proc/iomem...

Big thx to all of you for taking time to point me in the right
direction... And sorry for the noise ;)

best regards,

n3ph

On 05/27/15 17:46, Zaolin wrote:
> Hi Michael,
>
> again please use the UEFI Tool. Your VGA BIOS contains self modifying
> code and
> that's why the extraction inside the Linux does not work!
> I attached the Intel VGA BIOS for the X230 as reference.
>
> Regards Zaolin
> > Since SeaBios seems to be bothered about the checksum of the oprom i
> > tried to disable the checksum_check via:
> >
> > ./build/cbfstool build/coreboot.rom add-int -i 0 -n
> > etc/optionroms-checksum
> >
> > But it seems like there is sth. wrong with that vbios.. Multi-coloured
> > stripes and strange distortions until kernel boots...
> >
> > I guess i start using UEFITool to re-extract it...
> >
> > best regards,
> >
> > n3ph
> >
> > On 05/27/15 16:47, Michael Gerlach wrote:
> > > Here we go...
> > > I guess cbmem.log should be enough?
> > > Attached one boot with CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT=y set
> > > and one with CONFIG_VGA_ROM_RUN=y and CONFIG_S3_VGA_ROM_RUN=y..
> > > MAINBOARD_DO_NATIVE_VGA_INIT does nothing - display is initialzed
> > > as recently as kernel is already loaded and display driver starts
> > > working.
> > > VGA_ROM_RUN at least corectly initialize the display, but - as
> > > already mentioned - no output from coreboot nor seabios is
> > > displayed - just a white blinking cursor until kernel gets loaded..
> > > I guess i have no timeout in grub2 - so this might be the reason
> > > why i also see no output from grub..
> > > best regards,
> > > n3ph

Lenovo x230 - vgabios

[Paul Menzel]

Dear Michael,

Am Mittwoch, den 27.05.2015, 18:22 +0200 schrieb Michael Gerlach:

[…]

Awesome that you got it to work!
> For debug and documentation reasons i will attach the working config,
> vgabios, pxe rom image (with disabled BANNER_TIMEOUT), the final cbmem
> boot log, the old vgabios which i've dumped via /sys/devices and the
> smaller one which i got from /proc/iomem...
>
> Big thx to all of you for taking time to point me in the right
> direction... And sorry for the noise ;)

We have the board status repository [1] for that purpose. At least some
of these files are stored there.

Could you please run the script `util/board_status/board_status.sh -u`
[2] to upload these files. Please make sure to disable USB and serial
debug to make the boot as fast as possible. Please enable the time
stamps in the menu *General* for capturing the time stamps.

Thank you very much!

Paul

[1] http://review.coreboot.org/gitweb?p=board-status.git;a=summary
[2] http://review.coreboot.org/6660/