@jcmarcos

Yes, the signal on DVI is digital RGB.

The picture quality is better than analogue VGA because bytes map directly to pixels. That's also why you don't need to set up horizontal timings. However, you do need to output pixels at the right speed to refresh the screen.

I don't know about software drivers for DVI or how MorphOS works with DVI. Theoretically, mode edit is redundant.

An interesting feature of DVI is EDID. EDID is the Extended Display Identification Data: Your graphics card can ask the monitor what screenmodes are available and even what is the preferred screenmode. Some graphics cards support a similar feature on VGA called DDC. I don't think MorphOS drivers support EDID or DDC.

In hardware support; I think this and software system shutdown are the biggest two features missing from MorphOS. I guess MorphOS team would say that graphics drivers are not actually part of MorphOS.

(DVI is specified by the Digital Display Working Group.)