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       radeontool  —  utility to get/set registers and 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, and is able to list or set register


       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


       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 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.