[coreboot] Re: Custom Splash Screen

[R S]

Yeah the Purism post is written by the great Youness Alaoui who worked
pretty hard to get the LibreM BIOS working. I remember the time where he
was posting regularly on the coreboot list here. Amazing work and
documentation. I for one am thankful for Purism hiring him.

On Wed, Jul 26, 2023 at 3:17 AM Ahamed Husni 
wrote:
> Hi Michał Żygowski,
>
> Thank you for the quick response. The links you provided
> have important information which I could not have figured
> myself out. I will try it and let you know the results :)
>
> Thank you,
> Husni.
>
> On Tue, Jul 25, 2023 at 1:24 PM Michał Żygowski 
> wrote:
> > Hi Ahamed Husni,
> >
> > On 7/24/23 18:50, Ahamed Husni wrote:
> > > Hi all,
> > >
> > > I want to display a custom logo in the splash screen for a specified
> > > amount of time (SeaBIOS as payload). How do I configure the logo and
> > > give a timeout when building coreboot? Any pointers will be really
> > > helpful.
> >
> > Logo: https://www.seabios.org/Runtime_config#Bootsplash_images
> > (bootsplash.jpg)
> >
> > You may add the custom logo to the CBFS by specifying the path to logo
> > file during coreboot build in menuconfig General Setup -> Add a
> > bootsplash image
> > SeaBIOS is quite picky regarding the format of the JPEG and BMP. Be sure
> > to use some legacy screen resolution, the logo file must also exactly
> > match the screen resolution.
> > Here is a blog from Purism where some struggles with JPEG format and
> > SeaBIOS are discussed:
> > https://puri.sm/posts/librem-13-coreboot-report-february-25th-2017/
> >
> > Specified amount of time:
> > https://www.seabios.org/Runtime_config#Other_Configuration_items
> > (etc/boot-menu-wait)
> >
> > The timeout can be added using cbfstool after the build is finished:
> >
> > cbfstool coreboot.rom add-int -r COREBOOT -n etc/boot-menu-wait -i
> >
> > <timeout_value>
> >
> > If you have vboot with multiple CBFSes then you would also need to run:
> >
> > cbfstool coreboot.rom add-int -r FW_MAIN_A -n etc/boot-menu-wait -i
> >
> > <timeout_value>
> > cbfstool coreboot.rom add-int -r FW_MAIN_B -n etc/boot-menu-wait -i
> > <timeout_value>
> > > Regards,
> > > Husni.
> > >
> > > coreboot mailing list -- [e-mail]
> > > To unsubscribe send an email to [e-mail]
> > Best regards,
> >
> > Michał Żygowski
> > Firmware Engineer
> > GPG: 6B5BA214D21FCEB2
> > https://3mdeb.com | @3mdeb_com
> >
> > coreboot mailing list -- [e-mail]
> > To unsubscribe send an email to [e-mail]
>
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