radeontool — utility to get/set registers and to control backlight on radeon based laptops

       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.

                                                                                                   RADEONTOOL(8)

       You can specify one of the following commands:

       dac[on|off]
                 Power down the external video output

       light[on|off]
                 Power down the backlight

       stretch[on|off|vert|horiz|auto|manual]
                 Adjusts stretching for resolution mismatch

       regs      Show a listing of some random registers

       regmatch[pattern]
                 Show registers matching wildcard pattern

       regset[pattern][value]
                 Set registers matching wildcard pattern

       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,
       and is able to list or set register values.

       radeontool — utility to get/set registers and to control backlight on radeon based laptops

       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

radeontool [option][command]