I got things going with my SDRPlay v1 a while ago after viewing this.
See...
https://www.youtube.com/watch?v=1iyvgeES51E
And the info at ...
blog:
https://kb9rlw.blogspot.com/2021/06/a-simple-script-to-get-sdrplay-hardware.html
So long as you have the correct/latest SDRPlay API already installed,
the script referenced above will build SoapySDR against it, and install
the resulting newly built version of SoapySDR where GQRX can find it.
NOTE!!! You may need to REMOVE the existing install of SoapySDR before
doing the above.
Note too, that the script referenced above also builds and install's a
copy of CubicSDR. But, I found that it was bricked from the outset, so
removed that.
Maybe that has changed since then.
I need to redo all the above myself, having recently upgraded my OS, and
now have an utterly broken GQRX etc.
View the Youtube video first, and then look at the blog pages.
No affiliation to any of the above sites/pages, but the info in them
worked well for me in the not too distant past, to get things working on
LMDE5. As above, I've now upgraded to LMDE6, and that broke several
things for me, not just GQRX!
73.
Dave B.
Created on and sent from a Unix like PC running and using open source software: