Gbacklight is a graphical frontend to xbacklight for adjusting the display brightness. It is a stand alone application with no dependencies other than GTK and X.
gbacklight options
where options are
--help, -h Print usage summary and exit
--display, -d display Use 'display' instead of the default one
./configure
make
make install
You need to have the packages xrandr, xrender, x11 and gtk installed although these typically come with recent linux distros.
Please send any feedback about gbacklight to fetchinson@gmail.com
gbacklight uses xbacklight which is copyright by Keith Packard.