Hi everyone, my first post here.
What I get:
- When I click on TV or Radio, then Channels, I get the message "PVR manager is starting up: 0%" on the top right forever, flashing, but never changing
- The list of TV and Radio channels are empty (0 channels)
What I expect to get:
- The list of channels be populated, and I be able to browse and watch/listen
This is my setup:
- Raspberry Pi 3
- Astrometa DVB dongle (see dmesg output below) connected via USB Port to RPi3
- LibreELEC-RPi2.arm-9.2.6 (Kodi 18.9)
- Latest versions of Tvheadend HTSP Client and Tvheadend Server from LibreELELC repository
- Latest version of DVBViewer Client from LibreELELC repository
- Also the following add-ons installed: Raspberry Pi Tools, DVB Tools, System Tools, FFmpeg Tools, Adafruit Libraries
- Donlge connected to local cable TV and also (in a different try) connected to the small antenna that was shipped with the dongle
What am I missing? Where could be the problem? Am I missing an Addon, a hardware device, a special kind of coaxial connection, ...?
Thanks in advance for your help and support 
Code
[ 198.382682] usb 1-1.4: new high-speed USB device number 6 using dwc_otg
[ 198.499666] usb 1-1.4: New USB device found, idVendor=15f4, idProduct=0131, bcdDevice= 1.00
[ 198.499689] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 198.499703] usb 1-1.4: Product: dvbt2
[ 198.499716] usb 1-1.4: Manufacturer: astrometadvbt2
[ 198.507640] usb 1-1.4: dvb_usb_v2: found a 'Astrometa DVB-T2' in warm state
[ 198.580029] usb 1-1.4: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[ 198.580079] dvbdev: DVB: registering new adapter (Astrometa DVB-T2)
[ 198.590723] i2c i2c-3: Added multiplexed i2c bus 4
[ 198.590744] rtl2832 3-0010: Realtek RTL2832 successfully attached
[ 198.590831] usb 1-1.4: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))...
[ 198.591052] r820t 4-003a: creating new instance
[ 198.598122] r820t 4-003a: Rafael Micro r820t successfully identified
[ 198.613654] Registered IR keymap rc-empty
[ 198.613816] rc rc0: Astrometa DVB-T2 as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4/rc/rc0
[ 198.614028] rc rc0: lirc_dev: driver dvb_usb_rtl28xxu registered at minor = 0, raw IR receiver, no transmitter
[ 198.614254] input: Astrometa DVB-T2 as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4/rc/rc0/input7
[ 198.614696] usb 1-1.4: dvb_usb_v2: schedule remote query interval to 200 msecs
[ 198.623003] usb 1-1.4: dvb_usb_v2: 'Astrometa DVB-T2' successfully initialized and connected