From: David E. Wexelblat (dwex@mtgzfs3.att.com)
Date: 05/28/93


From: dwex@mtgzfs3.att.com (David E. Wexelblat)
Subject: Re: [Q] X possible with non-multisync-monitor ????
Date: Fri, 28 May 1993 14:56:38 GMT

In article <1u45hu$olk@cville-srv.wam.umd.edu> bbfaus@wam.umd.edu (John E. Krokes) writes:
> In article <1u24ps$pnr@urmel.informatik.rwth-aachen.de> arnd@rea.informatik.rwth-aachen.de (Arnd Gehrmann) writes:
> >We are using a monochrom VGA-Monitor with the following Parameters:
> >
> >Horiz. 31.5 kHz
> >Vert. 60-70 Hz (auto sync.)
> >
> >Is it possible, to find a Xconfig-setting for this equipment and
> >which tools we need to use (modegen12.sc from the SLS 1.02 ???)
> >or do we need an Mutilsync.mon. in any case ???????
> >
>
> Yes, it is possible to use a single-freq. monitor. Just make sure the "clocks"
> line in Xconfig contains only one number. (31.5 in this case). You can use
> the modegen spreadsheets or just look through the VGA database file for modes
> that use 31 kHz.
>
> For more info, ask on comp.windows.x.i386unix.
>
> _____________________________________________________________________________
> ( John E. Krokes -- "Mag" -- First Accolade to The One True Dave )
> ) bbfaus@wam.umd.edu Most useful UNIX command: sleep 240 & (
> (_____________________________________________________________________________)
>
>

Please DON'T offer authoritative advise if you don't know what you're talking
about.

There is no correlation whatsoever between the number of clocks line (which is
in units of MHz) and the horizontal sync frequency (which is in units of kHz).
The Clocks line must contain the available dot-clock frequencies from the
board.

The horizontal sync rate is determined by the dot-clock divided by the number
of pixel times (displayed + sync) in a single scan line. For a fixed-frequency
monitor this ratio must be exact.

Read the VideoModes.doc file to find out how to calculate a mode.