[Coco] Artifacting on LCD?

[Nick Marentes]

No artifacting on LCD...in the same sence that artifacting on a 
composite or RF monitor produces.

There is some image distortion if you are suppling an LCD of a certain 
native resolution (eg, 1024x768) but are delivering a different 
resolution to it (eg. 640x240 or scan doubled (640x480). The LCD 
circuitry normally scales the lower resolution image to fit the LCD 
native resolution and this causes a distortion.

If it didn't scale up, the image would appear as a small box on the 
screen surrounded by large black borders to fill the unused areas.

I personally hate using an LCD on a CoCo due to the "degraded" image 
sharpness from the upscaling effect.

I prefer to get a 15Khz RGB monitor (such as the Commodore Amiga 1084 
series, Magnavox equivalent or just a Tandy CM8).

With a CoCo connected. you can't see scanlines on an LCD when the low 
res image is scandoubled but I find this gives pixels a rather blocky 
appearance compared to the smoothed look I get from a CRT.

Nick