ddcprobe / X : how to force refresh rates / timing ?

[Toby Kelsey]

Vincent Trouilliez wrote:

> So, how can I tell X (if it's X that's involved), to use a higher
> refresh rate ? Can I give it custom timings (assuming I can figure it
> out) that would result in a higher refresh rate ?

Well, the traditional Linux approach is to use the horizontal sync and
the vertical refresh rate for your monitor and the dotclock and bandwidth
values for your video card, with the XFree86-Video-Timings HOWTO to
calculate a modeline. Add this as a Modeline in xorg.conf/XF86Config and
add the mode name to the Modes line in the Display section. Restart X and
use Ctrl-Alt-+/Ctrl-alt-- to select the resolution, then use xvidtune to
adjust borders etc. and update the modeline values.

Not trivial, but if everything else fails you could try it.

-- 
Toby