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. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1892547 Title: [ 0.172384] ACPI Exception: Could not find/resolve named package element: OC06 (20170831/dspkginit-381) [ 0.172444] ACPI Exception: Could not find/resolve named package element: OC07 (20170831/dspkginit-381) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1892547/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
