Possible modification ACPI uefi bios

[José Domingo Torres Montoya]

Hi, thank you in advance for your excellent work on coreboot for chromebook
computers, the UEFI version is working well, but now I need a modification
to be able to manage ACPI, I need the computer to always be on, and what if
it has Loss of current, when the power supply returns to the Computer, turn
it on again without having to press the power button

If this modification is possible or already exists, tell me the cost for
the feature

Thank you again in advance and I look forward to your prompt response.

[Lance Zhao]

That's nothing to do with ACPI, an feature of PCH.

José Domingo Torres Montoya  于 2022年12月27日周二
下午2:23写道：
> Hi, thank you in advance for your excellent work on coreboot for
> chromebook computers, the UEFI version is working well, but now I need a
> modification to be able to manage ACPI, I need the computer to always be
> on, and what if it has Loss of current, when the power supply returns to
> the Computer, turn it on again without having to press the power button
>
> If this modification is possible or already exists, tell me the cost for
> the feature
> Thank you again in advance and I look forward to your prompt response.
>
> www.mrfichas.com http://www.mrwisp.com
> García, Nuevo León. Area metropolitana de Monterrey
> WhatsApp [phone]
>
> coreboot mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]

[Michał Żygowski]

Hi,

On 20.12.2022 01:30, José Domingo Torres Montoya wrote:
> Hi, thank you in advance for your excellent work on coreboot for 
> chromebook computers, the UEFI version is working well, but now I need a 
> modification to be able to manage ACPI, I need the computer to always be 
> on, and what if it has Loss of current, when the power supply returns to 
> the Computer, turn it on again without having to press the power button
>
> If this modification is possible or already exists, tell me the cost for 
> the feature

You simply need to configure the coreboot build properly. When using 
menuconfig, go to "Mainboard" submenu and ensure the
"System Power State after Failure" is "S0 Full on". The feature may also 
need additional support from the Super I/O (desktop) or Embedded 
Controller (laptop) side depending on what board are you using.

Best regards,