Finally, I got it working: I bought a DVI cable, but also got a different VGA cable, which I tried first with the portable PC I also got for testing: No problem, the new VGA cable (which looked weaker than the previous, that had a pin less) worked fine.

So I plugged this new VGA cable to the Pegasos, and my new monitor works! CyberGraphX, via DCC detects a "Blusens LCD" monitor, and creates modes up to 1360 x 768, the one I'm using (mora of that later).

The downside is that I can't see SmartFirmware screen at all: The monitor says it's an invalid mode (really? 640 x 480 is "weird"?). Doh.

I think I remember there was some key to press in SmartFirmware, that somehow changed the screen, but it's only about the size of the text, not the display mode, right?

Now, for all you to laugh at me: After this relative success, I decided that I would try with my shiny new DVI cable, just for the sake of it, as I've already bought it in a hurry, and wasn't really needed. It would probably only work with analog signals, so it's not any better that the VGA cable.

So I opened the plastic shell, took the cable out, plugged it into the Radeon 9250 DVI port, and THEN (!) realized that my brand new monitor does NOT have a DVI port at all, of course. It has HDMI, just like any other modern monitor/TV.

Can one be any more stupid?

Back to more serious matters, does anyone here actually got a 1680 x 1050 mode out of the Radeon 9250? I played with obscene "bandwidth" values, trying to fool CyberGraphX (of course, I was only fooling out myself) to reach this pornographic resolution that the LCD panel has, but to no avail: While there was no problem setting the 1680 width, the height never got past 786 or some figure like that.

I hope someone here cares about helping such a dumb guy... Like I said before, perhaps I'm too old, and should not fuss around with modern, flat video technologies...