Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!batcomputer!sun.soe.clarkson.edu!bkc
From: bkc@sun.soe.clarkson.edu (Brad Clements)
Newsgroups: comp.windows.x
Subject: Re: X11R3, sun386 & 15"mono display
Message-ID: <2560@sun.soe.clarkson.edu>
Date: 27 Feb 89 17:59:28 GMT
References: <921@nih-csl.UUCP>
Sender: bkc@sun.soe.clarkson.edu
Lines: 32

From article <921@nih-csl.UUCP>, by jip@nih-csl.UUCP (john powell):
> Scenerio .... Sun 386i running SunOS4.0.1 with the 15" Monochrome display
> Video display (501-1443-01).  On boot, indicates:
> 
> 
> mapping BW2: No such device or address
> 
> Fatal server bug!
> Can't find any displays

I wrote to this list several weeks ago complaining of the same problem.
No one was able to help me so I fixed it myself as follows:

In ../server/ddx/sun/sunBW2.c

    in routine sunBW2Probe()  the second mmap call (for non-hires)
    uses  sizeof(BW2Rec).  This value is incorrect as it corresponds
    to the size of a 19"  1152 x 900 display.

    I replaced sizeof(BW2Rec) with fbType.fb_size (which is the
    actual size of the frame buffer as determined by the
    preceeding sunOpenFrameBuffer()  call.

works great now.  

Of course, what I'd really like is to be able to run MSDOS under
X windows...  Second to that I'd like to be able to switch
between Sunview and Xwindows quickly.

Brad Clements
Network Engineer
Clarkson University