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From: len@schur.math.nwu.edu (Len Evens)
Newsgroups: comp.windows.x
Subject: frame buffer problem
Message-ID: <11432@accuvax.nwu.edu>
Date: 28 Aug 90 22:26:57 GMT
Sender: news@accuvax.nwu.edu
Reply-To: len@schur.math.nwu.edu (Len Evens)
Distribution: na
Organization: Northwestern Univ. Evanston, Il.
Lines: 26

I have a Sun 3/110 on which I am running X-windows.  This machine
has a color graphics card, and a grey scale monitor.  The color
graphics frame buffer hardware has developed a problem which
yields a pattern of vertical lines running through most of
my screen.  The vmunix kernel contains drivers both for
color graphics (listed in the boot messages as)
cgfour0 at obmem 0xff000000 pri 4
and b&w (listed as)
bwtwo0 at obmem 0xff000000
The normal console uses the pure b&w mode, and there is no problem
with it.
Also, running sunview with the option -overlay_only eliminates the
problem.   I would like to be able to do the same
with X-windows.   I have experimented with choosing colors, but
I can not eliminate the problem that way.  Can anyone suggest
a way to avoid the color graphics frame buffer?


Leonard Evens      len@math.nwu.edu      708-491-5537
Dept. of Mathematics, Northwestern Univ., Evanston, IL 60208
	Any help would be appreciated.

if I make everything just black or white.

Leonard Evens      len@math.nwu.edu      708-491-5537
Dept. of Mathematics, Northwestern Univ., Evanston, IL 60208