Power management

This article Article description::describes methods to save energy for longer battery runtimes, a quieter computer, lower power bills, and an environmentally friendly impact.

Device-specific power management sub-articles can be found below in the Devices section.

BIOS
Disable unused devices right in the BIOS or EFI firmware. Potential devices to disable include:


 * Serial ports
 * Parallel ports
 * USB ports
 * Ethernet network devices
 * Wireless network devices
 * Bluetooth controllers

Devices
Devices which can save energy during runtime:


 * Processor
 * Display
 * HDD
 * CDROM
 * Video cards
 * Ethernet
 * Wifi
 * Bluetooth
 * Soundcard

Multi-devices/subsystems power management:


 * Hprofile

Interfaces

 * Bus
 * USB

Low power modes

 * Suspend and hibernate

External resources

 * https://www.linux.com/news/power-saving-linux - An article that provides generic explanations and advice for power saving on Linux.
 * https://github.com/mvp/uhubctl - USB hub per-port power control