[ltp] Changing CRT frequency

[Alex Deucher]

On 2/26/06, Shem Multinymous <multinymous@gmail.com> wrote:
> Hi,
>
> On the ATI X300 graphics chip (ThinkPad T43), is there any way to
> change the CRT refresh frequency without restarting the X server, with
> both LCD and CRT active? A solution for either the radeon driver or
> the fglrx driver would be fine.
>
> Switching of *resolution* with RANDR works perfectly with both
> drivers, but different monitors/projectors need different refresh
> rates.

use mergedfb and specify metamodes with different refresh rates=20
(e.g., 1024x768-1024x768-60 1024x768-1024x768-85, etc.) then use
xrandr or ctrl-alt-+/- to switch modes.  Make sure you define your
modelines.

Alex

>
>   Shem