Failed to open rtlsdr device

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Erik Meliska

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Jan 31, 2015, 12:15:52 PM1/31/15
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Hi, I am trying to make this work, but having this strange problem:

MacBook-Pro-uzivatela-Erik:rtl_audio ericsko$ rtl_433 -a
Registering protocol[01] Rubicson Temperature Sensor
Registering protocol[02] Prologue Temperature Sensor
Registering protocol[03] Silvercrest Remote Control
Registering protocol[04] ELV EM 1000
Registering protocol[05] ELV WS 2000
Registering protocol[06] Waveman Switch Transmitter
Registering protocol[07] Steffen Switch Transmitter
Registering protocol[08] Acurite 5n1 Weather Station
Registering protocol[09] Acurite Temperature and Humidity Sensor
Registering protocol[10] Acurite 896 Rain Gauge
Registering protocol[11] LaCrosse TX Temperature / Humidity Sensor
Registering protocol[12] Oregon Scientific Weather Sensor
Registering protocol[13] KlikAanKlikUit Wireless Switch
Registering protocol[14] AlectoV1 Weather Sensor
Registering protocol[15] Intertechno 433
Registering protocol[16] Mebus 433Max number of protocols reached 15
Registering protocol[17] Fine Offset Electronics, WH-2 Sensor
Max number of protocols reached 15

Found 1 device(s):

 0:  Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: ezcap USB 2.0 DVB-T/DAB/FM dongle
Failed to open rtlsdr device #0.


When I use for example rtl_test or rtl_fm, it works:

MacBook-Pro-uzivatela-Erik:rtl_audio ericsko$ rtl_test
Found 1 device(s):

 0:  Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: Generic RTL2832U OEM
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

Sampling at 2048000 S/s.

Info: This tool will continuously read from the device, and report if samples get lost. If you observe no further output, everything is fine.

Reading samples in async mode...

^CSignal caught, exiting!

User cancel, exiting...

Samples per million lost (minimum): 0


What can cause the problem?
I can't find out :(

0xFACE

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Feb 2, 2015, 8:30:22 AM2/2/15
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Try rmmod dvb_usb_rtl28xxu before running rtl_433
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Erik Meliska

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Feb 2, 2015, 8:59:08 AM2/2/15
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No luck :(

Dňa pondelok, 2. februára 2015 14:30:22 UTC+1 0xFACE napísal(-a):

Roberto Vinciguerra

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Jan 18, 2016, 7:45:08 PM1/18/16
to rtl_433
Close all other programs that works with your dongle and hold opened only terminal, start your rtl_433. Have you the same problem?

Jose Maria Diaz Gorriz

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Jan 19, 2016, 6:10:18 PM1/19/16
to rtl_433
I have to blacklist that module (dvb_usb_rtl28xxu) in /etc/modprobe.d/blacklist.conf, and now works.
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