[Open-graphics] ghostbusting LCD monitors need dual-link DVI

[Daniel Rozsnyó]

Dieter wrote:
> Found an interesting article that explains why LCD monitors continue
> to suffer "ghosting" despite faster and faster switching times.
> 
> http://www.xbitlabs.com/articles/other/display/lcd-parameters.html
> 
> Solution appears to be adding flicker to reduce ghosting.  :-(
> Keeping the flicker from being a problem will likely require
> higher refresh rates, just like CRTs.  At 60 Hz, a single link
> DVI can do up to 1080x1200, but with higher refresh rates,
> we'll need dual-link.

Why you want to send 120Hz to the display if it will actually replace 
each other frame with black ?

Rather use a buffer in the monitor to double the scanrate before the 
image goes to the LCD, in the same was as the 100Hz tv sets do.