[BRLTTY] brltty5.2 alpine2.11 cursor tracking

[Dave Mielke]

[quoted lines by Nicolas Pitre on 2015/09/18 at 17:02 -0400]

>Well... It's been a few days since I've been running that brltty version 
>on my BC640.  I don't know how the 5ms delay might affect things other 
>than the screen refresh rate, but it seems that some braille display key 
>events are dropped. Of course this is more visible with key release 
>events that show as stuck keys.  It seems to occur only with combination 
>of multiple keys so far, especially those that moves the display across 
>multiple lines such as NXDIFCHAR or NXDIFLINE.  Maybe in that case, 
>since there are more such key events to process simultaneously and more 
>work is performed to move the window, something might be lost due to a 
>race or something.

Have you verified that it's exactly this one change that makes the difference?

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