once again, may be it was described unclear
I do not do anything and do not run the job "get list of books on device" manually - I just to start the Calibre and then see that the Calibre start the job "get device information" and next job "get list of books on device"
The laptop Calibre did
not start "get device information" and - further - did
not start job "get list of books on device"...
both Calibre - desktop and laptop - installed C:\Calibre and both library folder D:\Lib.Calibre
is it magic ?