[BRLTTY] brltty on Debian 9.4 and Contracted Braille

[wmichaelb at fuse.net]

Per 
You need to do two things: 

The first is to speciofy the desired contraction table either via the -c 
command line option or via the contraction-table brltty.conf directive. If, for 
example, your friend would like to use US Grade 2 braille, then the contraction 
table would be en-us-g2. So: 

* On the command line: -c en-us-g2 
* In brltty.conf: contraction-table en-us-g2 

The second is to turn six-dot mode on. For the Power Braille, the TSI driver's 
pb.kti file contains the following definition: 

bind Bar1+Bar2+LeftRockerDown SIXDOTS 

If six-dot mode is off then you always get eight-dot computer braille as 
defined by the currently selected text table (-t or text-table). If six-dot 
mode is on then there are two possibilities. If a contraction table is defined 
(-c or contraction-table) then it's used - if one isn't then the computer 
braille text table is used but dots 7 and 8 are cleared. 

>and no additional flashing characters 

Which characters are "flashing"? 

I did edit the brltty.conf file with 
contraction-table en-us-g2 

I also added a text table, but neither of these helped. 
I will try the above key sequence to turn on six-dot braille. 

The extra flashing characters are colons and dots for two. 
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