Path: utzoo!utgpu!attcan!uunet!peregrine!elroy!ames!ncar!husc6!bloom-beacon!SW.MCC.COM!peterson
From: peterson@SW.MCC.COM (James Peterson)
Newsgroups: comp.windows.x
Subject: Re:  X11R2 and Color Sun Displays
Message-ID: <8808092226.AA09135@cleo.sw.mcc.com>
Date: 9 Aug 88 22:26:20 GMT
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 22

> Just 'rm /dev/bwtwo0' on your color machine.

That's not really a feasible thing to do:  I don't
have modify permission for /dev; it is used by other
programs, ...

> The Xsun man page tries to explain this.

The Xsun man page is talking about the cgfour, not the
cgtwo.  On the cgtwo it seems to work in a similar manner,
but there is no way to get the b/w screen to be displayed
(at least I can find one).  So if you move your cursor too
far to the left or right, it simply disappears.  Clients
run, but their output is invisible.

It is not unreasonable to believe that there must be some
unique value associated with each physical display and checking
that value for the cgtwo0 and the bwtwo0 would show that they
were the same display.  An inode number or field of the 
struct fbtype record.

jim