From: Michele Andreoli (andreoli@pisoft.it)
Date: Sat Mar 20 1999 - 18:10:51 CET
On Fri, Mar 19, 1999 at 10:16:03PM +0000, morph@softhome.net wrote:
> (--) VGA16: chipset: generic
> (--) VGA16: videoram: 256k (using 256k)
> (--) VGA16: clocks: 28.36 28.32 28.39 28.32
>
> Fatal server error:
> No valid modes found.
>
XF86Config problems are very disagreeable! Your problem is the clock.
You need a correct Modeline for your monitor.
>
> Modeline "640x400" 25.175 640 664 760 800 400 409 411 450
You can try to modify 25.175 to somewhat other values, but I don't know
the right formulas which calculate other parameters in this row ...
They are obtained with some interpolation of the clock+resolution, I think,
but only Superprobe can help you. The foundamental document for you is:
XFree86-Video-Timings-HOWTO.gz
but I cannot shake my brain with this HOWTO, at this moment :)))
You can download this HOWTO from Internet: it's a big treatise on TV
technologies; after this lecture, you can take a degree in Electronic
Engineering with little effort, sure!
Ciao
-michele-
-- Mi sarebbe piaciuto concludere con un'affermazione positiva, ma non me ne vengono in mente. Vanno bene due negative? -- Woody Allen
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