Path: utzoo!utgpu!attcan!uunet!husc6!purdue!decwrl!smaug.dec.com!desmond
From: desmond@smaug.dec.com (President, LKG Sunset Club)
Newsgroups: comp.sys.ibm.pc
Subject: Creating new EGA/VGA modes
Message-ID: <8811101454.AA28625@decwrl.dec.com>
Date: 10 Nov 88 14:54:40 GMT
Organization: Digital Equipment Corporation
Lines: 15

I would like to use IBM EGA and VGA cards in modes which are not
supported by the BIOS.  Specifically, I'd like to be able to set
them into something on the order of 720 by 400.

Can I do this if I just set appropriate values into the CRT Controller
registers?

Is there any danger in doing this (i.e. is it possible to destroy
monitors or cards when doing this?)

Any helpful information about programming EGA and VGA cards for
custom graphics modes would be appreciated also.  Thanks.

						John
ARPANET:  desmond@smaug.dec.com