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From: burkey@duncan.cs.utk.edu (Michael Burkey)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Loop Omnisync non-interlaced monitors (anyone have one?)
Message-ID: <1991Apr20.193501.2420@cs.utk.edu>
Date: 20 Apr 91 19:35:01 GMT
References: <1991Apr16.063825.19501@leland.Stanford.EDU> <1991Apr17.164509.19165@d.cs.okstate.edu> <1991Apr19.185311.6972@leland.Stanford.EDU>
Sender: usenet@cs.utk.edu (USENET News Poster)
Reply-To: burkey@duncan.cs.utk.edu (Michael Burkey)
Organization: Univ of TN, Knoxville - CS Department
Lines: 32

Ye Gads what a rag on monitors.

I will agree that a refresh rate higher than 60Hz is nicer, however the price is
generally outrageous.

Furthermore, most video cards will have problems doing 1024x768 at any higher
than a 60Hz refresh rate. The typical trident/tseng labs 1Mb card has an onboard
crystal that maxes out at 65Mhz. This allows for a maximum horizontal refresh of
48khz and maximum vertical of 60Hz at 1024x768 (unless you remove the overscan aka
border areas). 800x600 at 72Hz is quit nice on non-interlaced monitors (48khz horiz). If the flicker at 1024x768 bothers you, shift to 800x600.

Most monitors that I have seen seem to top out at around 50khz horizontal, and as a EE major and someone fairly familiar with computer equipment I can understand why. It is VERY hard to build equipment with a higher sync frequency and even harder to build it in such a way as to get a class B FCC certification.

The Sun Monitors are FCC class A and put of quite a bit of noise.

I'll be honest, I use a color Sun with the trinitron tube all day and the thing
gives me a headache and kills my eyes. To each their own.

The Mag Computronics 14" Color is NICE (49.5 Khz Max). I think it has a better
picture than the Sony/Seiko/NEC et al. in persnal opinion.

For the most part 60Hz is not that bad.

-- this is what standard IBM 640x480x16 mode uses by the way

-- I have heard some complaints but in general they have been few and far
   between.

-- People, before you make a decision, see if the amount of flicker at 640x480
   bothers you, and if not, it won't at 1024x768 60Hz either!

M Burkey