I didn't find this option in stable.
So I upgraded to Ubuntu 18.04, reinstalled drivers and installed the latest unstable TVH.
But now TVH starts with errors (and GUI is unaccessible):
service tvheadend status
● tvheadend.service - Tvheadend - a TV streaming server and DVR
Loaded: loaded (/lib/systemd/system/tvheadend.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2019-05-02 15:26:05 MSK; 3min 52s ago
Process: 1403 ExecStart=/usr/bin/tvheadend -f -p /var/run/tvheadend.pid $OPTIONS (code=exited, status=0/SUCCESS)
Main PID: 1857 (tvheadend)
Tasks: 19 (limit: 4915)
CGroup: /system.slice/tvheadend.service
└─1857 /usr/bin/tvheadend -f -p /var/run/tvheadend.pid -u hts -g video
мая 02 15:26:18 tvbung tvheadend[1857]: linuxdvb: dvbca0-0: CAM slot 0 status changed to module present
мая 02 15:26:20 tvbung tvheadend[1857]: en50221: dvbca15: invalid slot number 0x00 and transport connection id (0x02)
мая 02 15:26:21 tvbung tvheadend[1857]: ddci: DDCI found /dev/dvb/adapter14/sec0
мая 02 15:26:21 tvbung tvheadend[1857]: linuxdvb: adapter added /dev/dvb/adapter14
мая 02 15:26:21 tvbung tvheadend[1857]: linuxdvb: dvbca0-0: CAM slot 0 status changed to module present
мая 02 15:26:21 tvbung tvheadend[1857]: linuxdvb: adapter added /dev/dvb/adapter7
мая 02 15:26:21 tvbung tvheadend[1857]: linuxdvb: adapter added /dev/dvb/adapter6
мая 02 15:26:22 tvbung tvheadend[1857]: en50221: dvbca14: invalid slot number 0x00 and transport connection id (0x02)
мая 02 15:26:23 tvbung tvheadend[1857]: ddci: DDCI found /dev/dvb/adapter5/sec0
мая 02 15:26:23 tvbung tvheadend[1857]: linuxdvb: adapter added /dev/dvb/adapter5
