The
teliosio driver provides support for controlling brightness and power of the LCD screen in Sharp Telios series machines.
The default keymap binds <
Ctrl> + <
Alt> + <
arrowkey> to control brightness with left and right arrow keys, and <
Ctrl> + <
Alt> + <
space> to toggle power of the LCD screen.
The current status of the battery unit can be displayed via
apm(8).