[BRLTTY] Refreshing problems?

[Mark L. Melonson]

Dave,

Attached is bm-flow.patch, If I remember correctly, it was to enforce 
serial flow control.

To recap... I am using a Brailliant 80, and when I am typing, and I reach 
around the 50th, cell or so, I start getting garbage on the display... 
dots and then cells drop seemingly randomly, as my typing progresses. This 
also occurs when I press type too fast or keep my finger on backspace. It 
also seems to occur when I move from line to line quickly. The problem 
corrects itself if I turn the display off and then back on, but it's very 
tedious when you are knee-deep in code ;).

I hope that helps... I will wait to try tracing until I hear back from 
you, just so we don't end up going down two possibly confusing paths.

Best regards,
-Mark

---
"Life cane be expressed through a game of chess... Our struggles are
everchanging; strategy and tactics must be re-evaluated and variations
must be taken into consideration. The only things that remain constant
throughout this everchanging exhange-fest are ideals and principles."

On Thu, 1 Feb 2007, Dave Mielke wrote:

> Date: Thu, 1 Feb 2007 10:23:55 -0500
> From: Dave Mielke <dave at mielke.cc>
> Reply-To: Informal discussion between users and developers of BRLTTY.
>     <brltty at mielke.cc>
> To: Informal discussion between users and developers of BRLTTY.
>     <brltty at mielke.cc>
> Subject: Re: [BRLTTY] Refreshing problems?
> 
> [quoted lines by Mark L. Melonson on 2007/01/31 at 12:09 -0700]
>
>> The last step I've taken was applying the flow-control patch. After
>> applying it, I did not get any braille messages.
>
> I must apologize for not remembering the details of this issue. Could you
> please remind me a bit regarding what it's all about, including what your
> display model is? Also, perhaps you could send me the patch so that I can be
> reminded regarding what it was supposed to do. Thanks.
>
>> It was suggested that I
>> try packet tracing... Should I do this with brltty or on Windows with it's
>> commercial driver and Window-Eyes?
>
> I, personally, would go with an environment where the display is working
> correctly, which, I guess, is Windows, and using standard I/O tracing on that
> platform so that we can see if we're missing any tricks.
>
> -- 
> Dave Mielke           | 2213 Fox Crescent | I believe that the Bible is the
> Phone: 1-613-726-0014 | Ottawa, Ontario   | Word of God. Please contact me
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-------------- next part --------------
Index: braille.c
===================================================================
--- braille.c	(revision 2701)
+++ braille.c	(working copy)
@@ -275,6 +275,7 @@
   if ((serialDevice = serialOpenDevice(device))) {
     if (serialRestartDevice(serialDevice, protocol->serialBaud)) {
       if (serialSetParity(serialDevice, protocol->serialParity)) {
+        serialSetFlowControl(serialDevice, SERIAL_FLOW_HARDWARE);
         return 1;
       }
     }