Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!sun-barr!decwrl!pandora.pa.dec.com!joel
From: joel@pandora.pa.dec.com (Joel McCormack)
Newsgroups: comp.windows.x
Subject: Re: Bug in DECStation 3100 X server
Message-ID: <2286@bacchus.dec.com>
Date: 16 Dec 89 02:30:24 GMT
References: <1499@utkcs2.cs.utk.edu>
Sender: news@decwrl.dec.com
Reply-To: joel@pandora.pa.dec.com (Joel McCormack)
Lines: 15


> There appears to be a bug in DEC's X server for the DECStation 3100.  Try
> an XGetImage from a pixmap with the image's width and height equal to 33.

> At least under some circumstances this can cause garbage to be *written* into
> the *pixmap*.  Changing the GetImage size from 33 to 32 will "fix" the
> problem.


There was one line of code in GetImage which read ``*psrc = *pdst''
rather than the other way 'round.  This is fixed in UWS 2.2.  This is
actually a pretty old bug; it may have been fixed in UWS 2.1, but I
don't remember.

- Joel McCormack (decwrl!joel, joel@decwrl.dec.com)