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From: Mike_Diack@kcbbs.gen.nz (Mike Diack)
Newsgroups: sci.electronics
Subject: VGA monitors
Message-ID: <1991May18.074619.18581@kcbbs.gen.nz>
Date: 18 May 91 07:46:19 GMT
Lines: 7
Organisation: Kappa Crucis Unix BBS, Auckland, New Zealand

Anyone know how a VGA card senses that a monitor is connected (or not) 
Problem : connect a sony video projector up to a vga port on a computer 
via a transparent interface , and nothing happens - piggyback a standard 
monitor on to the port and BOTH projector ond monitor work fine. How 
did the computer "know" that the monitor was there , and how can i dummy 
up the connections so the computer works into the projector WITHOUT 
the monitor ... all helpful hints appreciated , thanx , M.D.