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From: det@hawkmoon.MN.ORG (Derek E. Terveer)
Newsgroups: comp.sys.ibm.pc
Subject: Re: '386 Questions (video considerations)
Message-ID: <1990May23.204515.3030@hawkmoon.MN.ORG>
Date: 23 May 90 20:45:15 GMT
Organization: Home System (One of the Eternal Champions)
Lines: 31

In article <9536.264b1ff8@amherst.bitnet> tgoldin@amherst.bitnet writes:
> In article <36200011@suna2>, silver@suna2.cs.uiuc.edu writes:
> > 		Is video stuff as straight forward as it seems?
>
> Video is _not_ that simple.  The major consideration with super VGA and higher
> resolution is interlacing.  You should stay away from monitors/cards that force
> you to use an interlaced mode for high resolution.  Interlacing can cause
> considerable flicker (every other line of the display is updated during one
> screen rewrite;  it takes two rewrites to update the display).  It also seems
> that a true multisyncing monitor will reduce the chance of flicker.  Beware:
	      ^^^^^^^^^^^^
> some monitors that seem to be multisyncing are really only dual (or multiple)
> fixed frequency monitors (like the NEC "Multisync 2a").
  ^^^^^^^^^^^^^^^

Could you be a bit more expansive about what "multisync" means in a monitor and
how (and why) some monitors use multiple frequencies to display an image?  I
can understand that interlacing would cause flicker and, i suppose, with a
longer term phospher would be cheaper to make than a non-interlaced monitor.

I am in the process of looking at "super" vga monitors for running x11 on my
unix system and have decided, with some trepidation, that i would like
something no less capable than a Nec 3d.

Any other information about monitors in general would be helpful, since it is
sometimes a tad hard to learn the theory behind equipment merely from vendor's
advertisements!! (:-)

derek
-- 
Derek Terveer		det@hawkmoon.MN.ORG