[BRLTTY] Intermittent Failure

[wmichaelb at fuse.net]

Intermittents are the worst... 
My blind friend is beginning to have difficulty getting his 
PowerBraille 80 to work. It either works or doesn't, but will 
do so if he reboots two or three times. He's running Debian 9, 
using the brltty driver from the Debian repositories, and the 
system is current and fully updated. When it works, it does 
so perfectly, so I don't suspect hardware. Does anyone have 
a suggestion on where to begin troubleshooting? 

Thanks in advance. 
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