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Linux setup issue - Failed to open rtlsdr device #0

Posted: Sun Jan 24, 2021 2:01 am
by romton
I'm trying to install a RTL-SDR dongle v.3 on a raspberry pi 4.
I followed the quick start guide on rtl-sdr website but the final test fails:

Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001

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

The blacklist file missing is a common reply I've found and here it my folder and file.
/etc/modprobe.d $ ls
blacklist-8192cu.conf blacklist-rtl.conf raspi-blacklist.conf
blacklist-rtl8xxxu.conf libhackrf0.conf
/etc/modprobe.d $ sudo cat blacklist-rtl.conf
blacklist dvb_usb_rtl28xxu

Also, I tried the dongle on windows 10 and got it to work perfectly.
Could it be that my power supply doesn't provide enough current, it's a 3A...
Does anyone experience the same issue and could anyone please help me?
Best regards.

failed.jpg (73.54 KiB) Viewed 1130 times

Re: Linux setup issue - Failed to open rtlsdr device #0

Posted: Wed Jan 27, 2021 3:04 am
by rtlsdrblog
That error usually means that some other program is using the RTL-SDR. Is it a fresh install?

Can you also try other ports on the Pi4? Sometimes some ports on the Pi are a little finnicky.