Article View: comp.sys.ibm.pc.misc
Article #931Re: Using two monitors
From: Leonard Erickson
Date: Wed, 15 Apr 1992 09:44
Date: Wed, 15 Apr 1992 09:44
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tpradeep@cs.tamu.edu (Pradeep K Tapadiya) writes: >Often I have seen machines having a primary color monitor (CGA, EGA, VGA, etc) >and a secondary monochrome monitor. I wish to use the graphics capability >of my hercules monochrome card for my primary display and use a CGA card for >my secondary display. Is this configuration possible? Yes, but.... Unless you have a Hercules Color card or a Hercules InColor card, you'll only be able to use the first graphics page on the Herc card (ie, you have to set it to "half" mode, not "full") This is because the second page of Herc graphics RAM uses the same addresses as the CGA card. The Hercules cards mentioned above are designed to allow switching out their RAM if the Herc card is active. You could just as easily use an EGA or VGA card instead of the CGA. Note that I've got a Hercules mono card and a Hercules VGA card. The VGA card came with a utility to disable it whenever I want to use the second page on the monochrome card. -- Leonard Erickson leonard@qiclab.scn.rain.com CIS: [70465,203] 70465.203@compuserve.com FIDO: 1:105/56 Leonard.Erickson@f56.n105.z1.fidonet.org (The CIS address is checked daily. The others infrequently)
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Newsgroups: comp.sys.ibm.pc.misc Path: arc1-ca.pugleaf.net!sparky!uunet!psgrain!qiclab!leonard From: leonard@qiclab.scn.rain.com (Leonard Erickson) Subject: Re: Using two monitors Message-ID: <1992Apr15.094431.12533@qiclab.scn.rain.com> Reply-To: 70465.203@compuserve.com Organization: SCN Research/Qic Laboratories of Tigard, Oregon. References: <12300@tamsun.tamu.edu> Date: Wed, 15 Apr 1992 09:44:31 GMT Lines: 27