radeontool

radeontool utility to control backlight on radeon based laptops
radeontool [option] [command]
This manual page documents briefly the radeontool command.
This manual page was written for the Debian distribution because the original program does not have a manual page.
radeontool is a program that switches on/off backlight and external output on ATI Radeon based laptops
You can specify on of the following commands:
"dac Power down the external video output
"light Power down the backlight
"stretch Adjusts stretching for resolution mismatch
"regs Show a listing of some random registers
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below.
"--debug Show a little debug info
"--skip=n Skips the first n cards and acts on the n+1
This manual page was written by Luigi Gangitano luigi@debian.org for the Debian system (but may be used by others). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version published by the Free Software Foundation.
On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.