[BRLTTY] Bug#779404: brltty: Misses key presses from the display

[Lars Bjørndal]

Hello!

On Sat, Feb 28, 2015 at 11:33:58AM +0100, Samuel Thibault wrote:
> Fwd-ing the brltty mailing list for more expertise.
> 
> It seems there are keypresses issues with a handy tech device:
> 
> Odd Martin Baanrud, le Sat 28 Feb 2015 08:22:29 +0100, a écrit :
> > I'm using a Handy Tech Braille Star 40 connected via usb.
> > Often, when I press a button on the display, the decided action isn't performed.
> > However, when I press the button again, the decided action is performed twise.
> > For example, I can scroll a line up and nothing happends.
> > When I press the button again, the dispaly scrolls up 2 lines.
> 
> Odd Martin Baanrud, le Sat 28 Feb 2015 10:44:08 +0100, a écrit :
> > So far, it only seems to happen in the text console.
> 
> Would you be able to compile & test git snapshots of brltty so Dave can
> iterate with you over the bug?

I have not tested BRLTTY with Braille Star 40 on USB for a long time.
However, I had the same problem when running the device on bluetooth. I
solved that situation by putting the following two lines into
/etc/rc.d/rc.local file:

cd `readlink -f /sys/class/bluetooth/hci0`/../../../power
echo 20 > autosuspend

Lars