Panel Power On/Off; System Auto Off - Toshiba Satellite A300 Series User Manual

Panel power on/off

You can set up your computer so that power turns off automatically when
you close the display panel. When you open the panel, power turns on in
sleep or hibernation mode but not in boot mode.
If the panel power off function is enabled and use Shut down Windows, do
not close the display until the shut down function is completed.

System auto off

This feature turns the system off automatically if it is not used for a set
duration. The system shuts down in sleep mode or hibernation mode.
User's Manual
Power and Power-up Modes
6-14