luetooth connection to Brailliant BI 32 from Ubuntu 18.04

[Linux for blind general discussion]

This connection isn't working. From the command line I can
* pair with the device
* trust the device
connect <address> fails with:
Failed to connect: org.bluez.Error.InProgress
This is from a Lenovo laptop running Ubuntu 18.04. I have connected
several bluetooth devices to the laptop and the Brailliant to a phone
so both bits of hardware appear to be working.
Any suggestions for troubleshooting welcome
regards
Peter


-- 
Peter Rayner
Academic Lead - Climate & Energy College <http://www.climatecollege.unimelb.edu.au>
Clean Air and Urban Landscapes NESP hub <http://www.nespurban.edu.au>
School of Earth Sciences, University of Melbourne, 3010, Vic, Australia
mobile +61 402 752 379, skype: petermorag 
zoom id 4431343191, join at  <https://unimelb.zoom.us/j/4431343191?pwd=a1E5Z3JEOTRVQUJsaVdRbVUvR1QyZz09>
mail-to: prayner at unimelb.edu.au TWITTER: @raynerstrings