Comment 7 for bug 1892547

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Alex Hung (alexhung) wrote :

The error messages are caused by BIOS bugs, and they cannot be fixed in Ubuntu.

OC07 error in descriptions is declared but not defined in ACPI DSDT, i.e. External (OC07, UnknownObj).

The OEMB in #6 has a checksum (i.e. one of OEMx) is a OEM-specific table and that's probably used in Windows only (maybe a workaround).

Many ACPI functions are optional and it is sometimes okay to fail when these features are not used or can be disabled. If you have not obvious failures you can ignore them.