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From: waterman@cory.Berkeley.EDU (T.S. Alan Waterman)
Newsgroups: comp.sys.amiga
Subject: Screen Death
Message-ID: <4374@zen.berkeley.edu>
Date: Thu, 15-Oct-87 07:02:35 EDT
Article-I.D.: zen.4374
Posted: Thu Oct 15 07:02:35 1987
Date-Received: Sat, 17-Oct-87 05:45:10 EDT
Sender: news@zen.berkeley.edu
Reply-To: waterman@cory.Berkeley.EDU.UUCP (T.S. Alan Waterman)
Organization: Trefoil Systems, Berkeley
Lines: 35
Keywords: technicolor, fireworks_display_mode, screens
Summary: multiple screens blow each other up



     Regarding this talk about multiple screens dying all over in a big way:

  About a month ago, I ran into a great display bug (feature ?-). I was running
everything in non-overscan screens. Interlaced workbench, interlaced DBW VT100
(v2.2 -- anything higher tends do do nasty things to my system--haven't
bothered to track it down yet), and two show (Fish disk 72 ??) screens, one
full-blown HAM, the other sixteen color interlaced.

  Flipping through these, with the mouse and a little help from A-N and A-M,
I got a display with the top half being the top half of the HAM picture,
only it had the colors from the other show picture. This is where things
start to get strange: the bottom half had EIGHT replicas, in miniature, of
the hi-res picture, with the WORKBENCH colors!!

   Flipping up to another screen, it went away; so, I chased it. With the
two show screens as the highest, sliding one down across the other would
send the display into random hysterics, with little miniature images in
the wrong colors everywhere. Once it went into that near_death syndrome
called fireworks_display_mode in the manuals. 

  Alright, so this is wierd, yeah, but who cares? Well, the thing is, try
as I might, the machine would not crash from this. It was (is) infinitely
repeatable, but it _never_ crashes the machine!  Anybody have any clues?

   I wonder whether it's an Intuition bug that can happen even if you
do everything `right', or if it's something peculiar (very) to Show.
Anyone seen it quite like this?



--T.S.
=======the Truth, the (w)hole Truth, and nothing but the Truth======
=======I don't really care who's opinions these are.  Do you? ======