[BRLTTY] BrlTTY Braille freezes on Windows7 64-bit with NVDA

[Anders Holmberg]

Hi!
Try to send a brltty log by running the debug batch file.
Then send the log to the list.
I guess this will help the devs to resolve the problem.
/A

Michael Whapples skrev 2012-01-08 19:17:
> Hello,
> At this point I cannot work out whether this issue is a BrlTTY or NVDA 
> issue.
> I am using NVDA with BrlTTY 4.3-2 on Windows7 64-bit and from time to 
> time Braille output on my ALVA 544T freezes. When the Braille freezes 
> the only way to get NVDA to produce new Braille on the display is to 
> quit NVDA (at this point the display still shows what was on the 
> display when Braille froze), unplug my ALVA display from the USB port 
> and plug it back in (I plug it back in to the same USB port) and then 
> restart NVDA.
> I have not found a single cause of the issue, however it seems to be 
> most likely to happen when the Braille is updated frequently and 
> quickly (eg. when I am typing in a text field, however it is not 
> restricted to just typing).
> As I said I am running this on a Windows7 64-bit system and can only 
> test it with an ALVA 544T display through USB (the Windows7 system has 
> no serial port). I have not got any other screen reader or software 
> which will use the Braille display installed and also do not have the 
> libusb filter driver installed (as recommended in the BrlTTY 
> installer). I have the BrlTTY service installed so that BrlTTY starts 
> when windows starts.
> I have taken a NVDA log file of when the freeze of Braille occurs but 
> I am unable to find anything unusual going on in that. However I am 
> not yet ruling it out as a NVDA bug. Could anyone give me suggestions 
> on how to try and find the source of this bug.
> Michael Whapples
>
>
> _______________________________________________
> This message was sent via the BRLTTY mailing list.
> To post a message, send an e-mail to: BRLTTY at mielke.cc
> For general information, go to: http://mielke.cc/mailman/listinfo/brltty
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mielke.cc/pipermail/brltty/attachments/20120108/3bde7e8c/attachment.html>