FlightAware Discussions

USB Pro Stick not found on Ubuntu

When installed my USB Pro Stick into my Ubuntu with piaware installed I cannot see my USB installed on my ubuntu.
I can see other devices and I can see the light on within the USB but not connection and I think this is what is causing my dump1090 to fail.

Give the following commands.
Post the output of second command.

sudo apt install rtl-sdr

rtl_test -t

2 Likes

Found 1 device(s):
0: Realtek, RTL2832U, SN: 00001000

Using device 0: Generic RTL2832U
usb_claim_interface error -6
Failed to open rtlsdr device #0

ljk81@radar:~/dump1090-fa$ ./dump1090 --stats
Sat Apr 4 12:04:30 2020 AEST dump1090-fa 3.8.0 starting up.
rtlsdr: using device #0: Generic RTL2832U (Realtek, RTL2832U, SN 00001000)
usb_claim_interface error -6
rtlsdr: error opening the RTLSDR device: Device or resource busy

sudo systemctl stop piaware dump1090-fa fr24feed dump1090-mutability dump1090   

rtl_test -t   

Thanks…
Found 1 device(s):
0: Realtek, RTL2832U, SN: 00001000

Using device 0: Generic RTL2832U
Detached kernel driver
Found Rafael Micro R820T tuner
Supported gain values (29): 0.0 0.9 1.4 2.7 3.7 7.7 8.7 12.5 14.4 15.7 16.6 19.7 20.7 22.9 25.4 28.0 29.7 32.8 33.8 36.4 37.2 38.6 40.2 42.1 43.4 43.9 44.5 48.0 49.6
[R82XX] PLL not locked!
Sampling at 2048000 S/s.
No E4000 tuner found, aborting.
Reattached kernel driver

OK, so dongle is detected now after you stopped all software which could possibly use it.
Now let us find which software you have installed:

apt policy fr24feed

apt policy dump1090

apt policy dump1090-mutability

apt policy dump1090-fa  

apt policy dump978-fa

apt policy rbfeeder

apt policy dump978-rb