FirmWare Test Suite’s ACPI tests are improving. It sounds like they are acpica-dump compatible now, and FTWS dumps more than acpidump!
[PATCH 1/2] doc: add new –dump-acpi-from-sysfs option
[PATCH 0/2] make the acpi logs from fwts can be used acpica debugging
“-dumpfile=acpidump.log: load ACPI tables from output generated from acpidump or from sudo fwts –dump. The latter is preferred as fwts –dump is able to dump more tables than acpidump.[…]