radeonhd and ForceMinDotClock

[WouterC]

Hi guys,

After setting up a new mythtv system, I'm struggling with the videocard.

On my old system I used a vga2scart cable and forced the videocard (Radeon, X300) to ouput a composite signal.
Relevant pieces of xorg.conf:
ModeLine "1024x576" 19.875 1024 1092 1140 1272 576 581 586 625 +hsync +vsync interlace composite
Option "ForceMinDotClock" "14MHz"

Now I have a Radeon HD 2400, so I have to use the radeonhd driver.

What is the "ForceMinDotClock" equivalent of the radeonhd driver or how can it be done?

Wouter