Re: Custom Splash Screen

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 <[email protected]>
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 <[email protected]>
> 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 -- [email protected]
>> > To unsubscribe send an email to [email protected]
>>
>> Best regards,
>> --
>> Michał Żygowski
>> Firmware Engineer
>> GPG: 6B5BA214D21FCEB2
>> https://3mdeb.com | @3mdeb_com
>>
>> _______________________________________________
>> coreboot mailing list -- [email protected]
>> To unsubscribe send an email to [email protected]
>>
> _______________________________________________
> coreboot mailing list -- [email protected]
> To unsubscribe send an email to [email protected]
>


-- 
Cybersecurity Analyst
Technology Department
<http://comicsanscriminal.com>
<http://comicsanscriminal.com>
Buncombe County Schools
ComicSans Awareness Campaign <https://comicsanscriminal.com>

_______________________________________________
coreboot mailing list -- [email protected]
To unsubscribe send an email to [email protected]