If Linux detects an ACPI BIOS on bootup, what does it automatically deactivate? admin 12 years ago If Linux detects an ACPI BIOS on bootup, what does it automatically deactivate? A. PnP B. PCI C. ATA D.APM Explanation/Reference: APM is the older Version of ACPI, so it would not make sense to have both in one system. ← Previous question Next question →