Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!usc!apple!radius!pierce
From: pierce@radius.com (Pierce T. Wetter III)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Apple 8.24 video board - how does it *know* ?
Message-ID: <1281@radius.com>
Date: 31 May 90 00:35:15 GMT
References: <2744@syma.sussex.ac.uk>
Lines: 15

paulr@syma.sussex.ac.uk (Paul T Russell) writes:

>How does the Apple 8.24 video board know what sort of monitor
>it is connected to ? Presumably it's something to do with the
>way the cable is wired ? I'd like to persuade my 8.24 board to
>drive a 75 Hz monitor if possible.

   Certain lines are pulled high and low by the monitor. Three lines
 encode 8 different monitor types.

  Pierce
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