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You might study http://en.tldp.org/HOWTO/XFree86-Video-Timings-HOWTO/
It has most of the details. The refresh is (dot clock Hz)/(total x *
total y) and the scan is dot clock Hz)/(total x --the largest number in
the x part of the modeline) There may be limitations on the graphic
card and the monitor, of course. Regards, Paul Nielsen fabien.meghazi@xxxxxxxxxxx wrote: I've played around with the modeline generator at http://xtiming.sourceforge.net/cgi-bin/xtiming.pl, but I haven't been able to come up with a modeline at exactly 25KHz. Simplest I could get away with was somewhere between 30 and 31KHz. I have my doubts whether you can run resolutions that high *cough* at a frequency that low.I still have a question about this (a silly one because I don't know much about technical details related to video frenquencies) Why isn't it possible to run this resolution at a lower frequency and why isn't possible to run a lower resolution (eg 256x224) at a higher frequency (25Khz) ? Where is the limitation ? In the graphics cards or is it simply the way frequencies should work ? If the limitation is about graphic card, does exists some special cards which allows to do such things ? PS: sorry for these newbie questions, but I previously googled a lot on this subject and found nothing, i'm deseperated :) _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86 |
