There was an earlier post on this, but it doesn't seem relevant since the drivers seem quite new.
I have a fresh install of Ubuntu 18.04.2 and a brand new PS2207B. I installed via apt. The /opt/picoscope/lib/ has a library version 2.0.0. The picoscope application seems to work fine, and shows me good traces. Running the usbtest script shows correct permissions: the device has group 'pico' and so does my account. I checked by hand and all appears well.
I've compiled the ps2000Con from a fresh checkout of the git repository (both compiled by hand and with the autogen script) and it compiles and runs ok, but...
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PicoScope 2000 Series (ps2000) Driver Example Program Version 1.3 Opening the device... Handler: 0 Unable to open device Unit Not Opened Cal Date :
I've tried repeatedly opening the picoscope app, closing it, and running the command line. All the picoscope trials work, all the command-line ones don't.
What do I try next? Is this release buggy on this operating system?