From: julien@incal.inria.fr (Julien Maisonneuve) Subject: X11 and the joys of modes Date: 14 Aug 1992 12:01:24 GMT
OK, I grabbed X11 a bit late, but I just received a new video board (pvga based)
to replace my trident.
My problem is that I can't get my monitor to sync properly using the modes I
found in Xconfig and vga.dbase. Horizontally, things look right, but vertically,
I get flying superimposed pictures (Color is OK though :-). I can see xclock
jumping a bit (two superimposed pictures) but can't do any better.
The (numerous) changes I could make in the mode settings didn't do much, and the
mode I made using the video.tutorial doesn't seem to handle things better than
the others (not much worse either). Despite the tutorial, I figured out what the
mode values meant, but I can't find the proper values.
The clocks.exe reports only four clocks for my vga (something like 25 29 65 36)
and X11 does NOT find the same at all when I leave the clocks line out (reports 8
lower values, max is at 40). I try to use 65 (large values intuitively suggest
better resolution...).
My SVGA board & monitor can do a neat 1024x768x256 non interlaced picture under
DOS. Isn't it possible to write a DOS program that reads the vga registers in a
given mode (this very one) and tell the appropriate video timings ? That would
help a great deal the poor X11 installers with uncommon hardware.
That kind of help message seems to have disappeared from c.o.l, so most people
have likely solved the problem: I couldn't, someone please HELP !!!
Usual praises & kudos about Linux and X11...
--
_________ Julien.Maisonneuve@inria.fr julien@sor.inria.fr
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