Funky Fixed-Freq Monitors

[tim <tim@tneu.visi.com>]

Hey, everyone. 

I've got a bit of a project that I would like some advice on. 

I have aquired a 20" monitor free of charge - the only catch is it is a
fixed-frequency monitor.  I know these things are rather difficult to set
up without special fixed-frequency video cards - but I know it is
possible...

The monitor is an Ikegami C/T 20-HA. 

I've done a bit of research, and have discovered (as per a few web
sites) the Horizontal and Vertical sync frequencies for the monitor.  (64
horiz, 60 vert). 

In a nutshell, I've tried setting these sync rates in X, but the monitor
still doesn't sync right.   It looks just like a standard vga monitor does
when you hook it up to a PC doing 800x600.   When I hook it up to another
digital monitor, I can verify on the on-screen display that the sync
frequencies being generated match the specs (64x60). 

The video card I'm using is supposed to be able to handle
sync-on-composite video.  (ATI All-in-wonder 128). 

Anyone have any idea what I'm doing wrong?  

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