[BRLTTY] Brailliant BI sticky input

[S. Massy]

On Thu, Mar 26, 2015 at 12:24:08AM -0400, Stéphane Doyon wrote:
> On Wed, 25 Mar 2015, S. Massy wrote:
> >I've also come to suspect that there is some kind of bug in the actual
> >display firmware, possibly related to auto-poweroff. This bug seems to
> >happen after a sufficient number of poweroff/poweron/reconnect cycles and
> >causes loss of response to any input events whilst maintaining braille
> >output. Performing a device reset usually solves this problem.
> 
> Is there a quicker way to reset than disconnect and power cycle?
When I say reset, I mean actually choosing the option to reset to
default configuration in the firmware menu, which also seems to power
cycle the display. This has been the most reliable way to get out of
jams so far.

> >This bug
> >does not seem to occur with the auto-poweroff option disabled.
> 
> Interesting!
> 
> Hmm unfortunately I have disabled auto-poweroff, but hit the same issue
> again a while later.
Perhaps it's a different issue, then, like a failing button or even
board.

> 
> >I know this is not tremendously helpful, but, hopefully, those are some
> >pointers in the right direction.
> 
> Inconclusive perhaps, but rather valuable information to me. Thank you very
> much.
No worries. While we're on the topic, I wonder if you could try and
reproduce this:
1. Switch the display off.
2. Disconnect and reconnect the USB cable.
3. At this point, my display wakes up and reconnects but no input key
   works.
4. Long hold the power button; this brings up the make and model
   greeting.
5. Double-press the power button twice: BRLTTY should disconnect and
   reconnect, with all keys functioning as expected this time.

IOW, it looks like the display isn't waking up properly. My firmware
model is 2.0.3, using BRLTTY 5.2.

Cheers,
S.M.
-- 
Sebastien Massy
Montreal, Canada
Website: http://www.wolfdream.ca
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