More infos hope it could help you to help me :-)
root@TVHat:~# ls -l /dev/dvb/adapter0/
total 0
crw-rw---- 1 root video 212, 1 Sep 18 20:04 demux0
crw-rw---- 1 root video 212, 2 Sep 18 20:04 dvr0
crw-rw---- 1 root video 212, 0 Sep 18 20:04 frontend0
dmesg | grep -A 5 DVB
[ 8.454861] dvbdev: DVB: registering new adapter (CXD2880)
[ 8.511619] cxd2880: cxd2880_attach: CXD2880 driver version: Ver 1.4.1 - 1.0.5
[ 8.511651] cxd2880 spi0.0: DVB: registering adapter 0 frontend 0 (Sony CXD2880)...
[ 8.518951] cxd2880_spi: cxd2880_spi_probe: Sony CXD2880 has successfully attached.
[ 8.546184] Bluetooth: hci0: BCM: chip id 107
[ 8.546636] Bluetooth: hci0: BCM: features 0x2f
[ 8.547872] Bluetooth: hci0: BCM4345C0
[ 8.547908] Bluetooth: hci0: BCM4345C0 (003.001.025) build 0000
--
[ 20.225527] cxd2880 spi0.0: DVB: adapter 0 frontend 0 frequency 0 out of range (174000000..862000000)
[ 25.754616] wireguard: WireGuard 1.0.0 loaded. See www.wireguard.com for information.
[ 25.754639] wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
[ 34.776206] Initializing XFRM netlink socket
[ 35.375592] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 1361.775795] cxd2880 spi0.0: DVB: adapter 0 frontend 0 frequency 0 out of range (174000000..862000000)
[ 1366.429672] cxd2880 spi0.0: DVB: adapter 0 frontend 0 frequency 0 out of range (174000000..862000000)
[ 1487.005648] cxd2880 spi0.0: DVB: adapter 0 frontend 0 frequency 0 out of range (174000000..862000000)
[ 2244.403295] cxd2880 spi0.0: DVB: adapter 0 frontend 0 frequency 0 out of range (174000000..862000000)
[ 2420.764961] cxd2880 spi0.0: DVB: adapter 0 frontend 0 frequency 0 out of range (174000000..862000000)
[ 2778.720604] cxd2880 spi0.0: DVB: adapter 0 frontend 0 frequency 0 out of range (174000000..862000000)
[ 2954.062085] cxd2880 spi0.0: DVB: adapter 0 frontend 0 frequency 0 out of range (174000000..862000000)
If I try to start TVH as root with the command tvheadend --noacl
nothing changes.
Attached you can find the log file.