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From: kik@wjh12.harvard.edu (Ken Kreshtool)
Newsgroups: comp.sys.mac.hardware
Subject: DeskWriter driver 2.1 versus System 7
Summary: Use VM + 32-bit mode, or no VM + 24-bit
Message-ID: <1991May29.233145.1215@husc3.harvard.edu>
Date: 30 May 91 03:31:44 GMT
Organization: Harvard University Science Center
Lines: 29
Nntp-Posting-Host: husc9.harvard.edu
Originator: khoo@husc9.harvard.eduLines: 29

As has been posted, the DeskWriter, using driver 2.1, does not like to print
under System 7 with virtual memory turned on.  This seems to be a bug in System
7, but HP is trying to do a work around.  In the meantime, we're supposed to 
live either with VM or printing, but not both.  Well, I need printing even
more than I need VM, so I sighed and turned off VM.

But I just downloaded Nobu Toge's Flash-It 2.2b1, a screen capture init/cdev.
He notes in his docs that he also had trouble with virtual memory on, but
only in _24-bit mode_.  (I haven't tried Flash-It yet, but I read the docs.)

So I thought, hmmmmmmmm, maybe the DW has the same problem.  Maybe all of us
with printing problems in VM were also in 24-bit mode at the time?  After all,
don't really _need_ 32-bit, and so many apps can't handle it yet that I (and
maybe others?) have left it off.

I have switched VM back on, and have put my machine (IIsi) into 32-bit mode.
And printing is working!  No "datacomm buffer overrun" messages from the DW,
at least not yet!  'Course, gotta turn 32-bit off for some apps, but still....

Anybody else having the same kind of experience?

Ken Kreshtool
kik@wjh12.harvard.edu (my real e-mail address; this post is from a friend's
account on a different machine, so please don't just "r" back)
-- 
---
 Ah Love! Could You and I with Fate conspire, To Grasp this sorry scheme
 * of things             (Lawrence Oon-Chye Khoo)              Entire, * 
 Would we not            khoo@husc9.harvard.edu               Shatter it