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From: RWS@ZERMATT.LCS.MIT.EDU (Robert Scheifler)
Newsgroups: comp.windows.x
Subject: X11 dual screen on Sun 3/110
Message-ID: <870923085500.2.RWS@KILLINGTON.LCS.MIT.EDU>
Date: Wed, 23-Sep-87 08:55:00 EDT
Article-I.D.: KILLINGT.870923085500.2.RWS
Posted: Wed Sep 23 08:55:00 1987
Date-Received: Sat, 26-Sep-87 01:52:40 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 4

Since I got confused, I thought I would pass this on.  To get the dual
screen feature to work on a Sun 3/110, both /dev/bwtwo0 and /dev/cgfour0
need to exist.  If neither are present you'll just get a monochrome
screen, and if only cgfour0 is present you'll just get a color screen.