Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Mail Systems
Eclipse Documentation

How To Guides
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Problem Solutions
Privacy Policy





ACPI — ACPI Support


Advanced Configuration and Power Interface (ACPI) support for Linux requires ACPI-compliant hardware and firmware, and assumes the presence of OS-directed configuration and power management (OSPM) software. This option will enlarge your kernel by about 70 KB.

Linux ACPI provides a robust functional replacement for several legacy configuration and power management interfaces, including the Plug-and-Play BIOS specification (PnP BIOS), the MultiProcessor Specification (MPS), and the Advanced Power Management (APM) specification. If both ACPI and APM support are configured, whichever is loaded first will be used.

The ACPI SourceForge project at contains the latest source code, documentation, tools, mailing list subscription, and other information.

Linux support for ACPI is based on Intel Corporation's ACPI Component Architecture (ACPI CA). For more information, see

ACPI is an open industry specification co-developed by Compaq, Intel, Microsoft, Phoenix, and Toshiba. The specification is available at

  Published under the terms of the Creative Commons License Design by Interspire