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Package: linux-image-5.17.0-1-amd64 Version: 5.17.3-1 After upgrading from kernel 5.16 to 5.17 there are ACPI errors like this : kernel: ACPI Error: Aborting method \_PR.PR01._CPC due to previous error (AE_NOT_FOUND) (20211217/psparse-529) kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330) kernel: ACPI Error: Aborting method \_PR.PR02._CPC due to previous error (AE_NOT_FOUND) (20211217/psparse-529) kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330) kernel: ACPI Error: Aborting method \_PR.PR03._CPC due to previous error (AE_NOT_FOUND) (20211217/psparse-529) kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330) kernel: ACPI Error: Aborting method \_PR.PR04._CPC due to previous error (AE_NOT_FOUND) (20211217/psparse-529) kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330) kernel: ACPI Error: Aborting method \_PR.PR05._CPC due to previous error (AE_NOT_FOUND) (20211217/psparse-529) kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330) kernel: ACPI Error: Aborting method \_PR.PR06._CPC due to previous error (AE_NOT_FOUND) (20211217/psparse-529) kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330) kernel: ACPI Error: Aborting method \_PR.PR07._CPC due to previous error (AE_NOT_FOUND) (20211217/psparse-529) kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330) kernel: ACPI Error: Aborting method \_PR.PR08._CPC due to previous error (AE_NOT_FOUND) (20211217/psparse-529) kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330) kernel: ACPI Error: Aborting method \_PR.PR09._CPC due to previous error (AE_NOT_FOUND) (20211217/psparse-529) kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330) kernel: ACPI Error: Aborting method \_PR.PR10._CPC due to previous error (AE_NOT_FOUND) (20211217/psparse-529) kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (20211217/psargs-330) kernel: ACPI Error: Aborting method \_PR.PR11._CPC due to previous error (AE_NOT_FOUND) (20211217/psparse-529) Is it caused by ACPI_PFRUT ? . If yes maybe this should be disabled on desktop systems by default. Is there any kernel boot option to disable this functionality ? Regards Edi |