gtkmodeline is supposed to aid you in coming up
with new, better, custom video modes. The purpose
is to get every last row and column of
performance out of what your monitor can do, milk
it for all its worth, and otherwise generally
lower the life of your monitor. It essentially
lets you somewhat easily tweak the numbers and
instaneously see the results of your tweak, and
add config gibberish which the various software
packages need to see in order to know how to give
you this video mode. It currently generates
config lines which should be suitable for
configuring XFree86, SVGATextMode, and Linux
FBDev. Its a small perlscript which uses the Gtk
and Gtk::GladeXML modules.