Standby mode
This page is still under construction, it is meant to be added to the glossary
The standby mode is one of three power-saving modes for the Thinkpads. In this mode, only the LCD screen (and the external monitor, if attached) is turned off in order to save power. You can enter this mode by pressing Fn+F3 or by configuring your computer to enter standby mode automatically after a chosen duration of inactivity.
See How to make use of Power Management features to learn about getting standby mode and other power-saving modes to function on a Thinkpad running Linux.
External resources
Using and understanding the IBM ThinkPad advanced power management features