[coreboot] ACPI Errors on Lenovo X201i

Patrick Rudolph siro at das-labor.org
Fri Jul 13 23:41:50 CEST 2018

Hi Matthias,
It looks like the Ssdt generator on x201/nehalem doesn't work as expected.
It was broken and has been fixed in commit https://review.coreboot.org/#/c/coreboot/+/26287/
Do you see "ACPI:    * H8" in coreboot console log ?
Do you see any HBDC method in disassembled ACPI ?
Regards Patrick

Am 13. Juli 2018 22:46:12 MESZ schrieb Matthias Gazzari <mail at qtux.eu>:
>commit f1114d891865e70ae1f2ba58844fec11d055ae3a (ec/lenovo/h8/acpi: Add
>BDC interface) introduces the following ACPI errors on the Lenovo
>ACPI BIOS Error (bug): Could not resolve [\_SB.EC.HKEY], AE_NOT_FOUND
>ACPI Error: AE_NOT_FOUND, During name lookup/catalog
>ACPI Error: Ignore error and continue table load
>ACPI Error: Skipping Scope block (20180313/psloop-532)
>ACPI BIOS Error (bug): Could not resolve
>[\_SB.PCI0.LPCB.EC.HKEY.GBDC.HBDC], AE_NOT_FOUND (20180313/psargs-330)
>ACPI Error: Method parse/execution failed \_SB.PCI0.LPCB.EC.HKEY.GBDC,
>AE_NOT_FOUND (20180313/psparse-516)
>Do you have any idea on how to fix these issues?
>coreboot mailing list: coreboot at coreboot.org

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