utility to get/set registers and to control backlight on radeon based laptops
add an example, a script, a trick and tips
./radeontool regset FP_GEN_CNTL 0x0023058d
page documents briefly the radeontool command.
page was written for the Debian distribution because
the original program does not have a manual page.
is a program that switches on/off backlight and external
output on ATI Radeon based laptops, and is able to list or
set register values.
follow the usual GNU command line syntax, with long options
starting with two dashes (’-’). A summary
of options is included below.
Show a little debug info
Skips the first n cards and acts on the n+1
You can specify one of the following commands:
Power down the external video output
Power down the backlight
Adjusts stretching for resolution mismatch
Show a listing of some random registers
Show registers matching wildcard pattern
regset [pattern] [value]
Set registers matching wildcard pattern
page was written by Luigi Gangitano luigi[:at:]debian[:dot:]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
systems, the complete text of the GNU General Public License
can be found in /usr/share/common-licenses/GPL.