...it starts and I see the SDRPlay Source in the list. However when I run a graph with that block included, I get the dreaded "no supported devices found" error. I have it plugged in, the device shows up in lsusb, and disappears when I unplug it. When I did the build for gr-osmosdr, it says that "SDRplay RSP (NONFREE)" is enabled. I've tried multiple USB ports.
When I start gnuradio-companion, the terminal window has this:
gr-osmosdr v0.1.4-144-g65652c99 (0.1.5git) gnuradio 188.8.131.52
...which seems to indicate that it's found the version of gr-osmosdr that I installed according to the instructions.
Is there something else I should be looking for?
Thank you for your help with this, I can supply any other information you might need.
Reason: No reason