New User: GRC forgets how to find my HackRF_One - can anyone help?

[gdstorrick]

Installing and running GNURadio-companion and getting it to work on Windows 10 was easy. Not so on Linux, but after seven full days of trials and repeated failure, I now have my HackRF working with GNURadio-companion on my Ubuntu laptop; however, every time I execute a radio, I have to disconnect and reconnect the HackRF or else GNURadio-companion can not find the HackRF again. Any quick suggestions on how to improve its memory?

For anyone that is interested, my installation started with resetting my Dell XPS13 to a factory-fresh Ubuntu 18.04 configuration, then executing the following commands:
 

sudo apt-get install build-essential cmake libusb-1.0-0-dev pkg-config libfftw3-dev
git clone https://github.com/mossmann/hackrf.git
cd hackrf/host
mkdir build && cd build
cmake ../
make
sudo make install
sudo ldconfig
rm -rf *
hackrf_info


cd ~
sudo apt-get install gnuradio gnuradio-dev gr-iqbal
sudo apt install gqrx-sdr
sudo apt install git
git clone git://git.osmocom.org/gr-osmosdr
cd gr-osmosdr
mkdir build && cd build
cmake ../
make
sudo make install
sudo ldconfig
gnuradio-companion

 

[gdstorrick]

More info: Connection appears to work at random:

$ hackrf_info
hackrf_info version: git-509c8f4
libhackrf version: git-509c8f4 (0.5)
Found HackRF
Index: 0
hackrf_open() failed: Input/Output Error (-1000)
$ hackrf_info
hackrf_info version: git-509c8f4
libhackrf version: git-509c8f4 (0.5)
Found HackRF
Index: 0
hackrf_open() failed: Input/Output Error (-1000)
$ hackrf_info
hackrf_info version: git-509c8f4
libhackrf version: git-509c8f4 (0.5)
Found HackRF
Index: 0
Serial number: 000000000000000087c8<SNIP>
Board ID Number: 2 (HackRF One)
Firmware Version: 2017.02.1 (API:1.02)
Part ID Number: 0xa000<SNIP> 0x005<SNIP>
$ hackrf_info
hackrf_info version: git-509c8f4
libhackrf version: git-509c8f4 (0.5)
Found HackRF
Index: 0
hackrf_open() failed: Input/Output Error (-1000)

 

[gdstorrick]

Thank you to Jérôme for giving me this solution:

sudo nano / etc / default / tlp 

Then add the following line:

USB_BLACKLIST = "1d50:6089 1d50:604b"