[coreboot] More ACPI errors on Lenovo X201i

Patrick Rudolph siro at das-labor.org
Tue Jul 24 09:04:53 CEST 2018

Hi Matthias,

On 2018-07-23 03:32 PM, Matthias Gazzari wrote:
> Hi Patrick,
> I found new ACPI errors on my Lenovo X201i:
> commit "60eca531df ec/lenovo/h8/acpi: Add WWAN ACPI methods" introduces
> the following error just before shutdown:
> thinkpad_acpi_ acpi_evalf(\WGSV, vd, ...) failed: AE_NOT_FOUND
Is expected, as the method doesn't exists in coreboot.
I'm working on a cmos acpi driver, allowing easy integration of that
If you want you can implement a stub driver (emtpy function) in the

> and commit "31fb846c59 ec/lenovo/h8/acpi: Apply state on wake"
> introduces the following errors on boot:
> ACPI Error: No handler for Region [ERAM] (        (ptrval))
> [EmbeddedControl] (20180313/evregion-132)
> ACPI Error: Region EmbeddedControl (ID=3) has no handler
I've no idea what the problem is.
Is there an ACPI expert here ?

> (20180313/exfldio-265)
> ACPI Error: Method parse/execution failed \_SB.PCI0.LPCB.EC.HKEY._INI,
> AE_NOT_EXIST (20180313/psparse-516)
> ACPI Error: AE_NOT_EXIST, during \_SB.PCI0.LPCB.EC.HKEY._INI execution
> (20180313/nsinit-670)
> Cheers,
> Matthias


More information about the coreboot mailing list