
In the following examples, acpi_video0 is used. In the case of an Intel card, the directory is called intel_backlight. In this case, the backlight is managed by an ATI graphics card. The name of the directory depends on the graphics card model. An interface to this module is provided via a sysfs(5) directory at /sys/class/backlight/. The power level can often be controlled using the ACPI kernel module for video. The brightness of the screen backlight is adjusted by setting the power level of the backlight LEDs or cathodes.

It was a laptop that wasnt being used for about 3-4 years because he couldnt get it to show any display. It features an XML-based keycode configuration file format, which makes it possible to define the hotkeys to launch any programs you want. Keyboard Backlight Settings Toshiba Satellite Code Configuration File

It has On-screen display (OSD) to show the volume, program thats being started, etc. The buttons perform their intended behaviors, such as volume up and down, mute the speaker, control the backlight, launch applications, etc. The discription is as follows: This program sits at the back and listens for the special hotkeys that you wont normally use on your InternetMultimedia keyboards. I get the same behavior as I do when I just use the System Defaults.
