Channel Unavailable

For discussion of topics specific to MythTV on linux
Post Reply
Posts: 7
Joined: Mon Jun 09, 2014 7:50 pm
Location: Cambridgeshire, UK
Great Britain

Channel Unavailable

Post by andrewj720 » Tue May 21, 2019 1:12 pm

I've reinstalled MythTV (backend only), on Ubuntu Server 18.04.

I have a TBS 6285 DVB tuner connected via PCIe.

Live TV was working nicely for several days, except at reboot, so I was reconfiguring systemd files, and I seemed to have hosed live TV, as I now get Channel Unavailable when connecting from Kodi mythtvPVR over local network.

The sockets are showing at /dev/dvb/

Stopping and starting (using either mythbackend or systemctl start mythbackend.service) starts the backend but I still get 'channel unavailable'

Code: Select all

systemctl status mythbackend.service 

Code: Select all

● mythbackend.service - MythTV backend service
   Loaded: loaded (/etc/systemd/system/mythbackend.service; enabled; vendor preset: enabled)
  Drop-In: /etc/systemd/system/mythbackend.service.d
   Active: active (running) since Tue 2019-05-21 14:00:56 BST; 1min 8s ago
 Main PID: 18533 (mythbackend)
   Status: "Master backend. Recordings: active 0, scheduled 6"
    Tasks: 44 (limit: 1416)
   CGroup: /system.slice/mythbackend.service
           └─18533 /usr/bin/mythbackend --syslog local7
Here is my kodi.log ... sp=sharing

Anyone have any ideas as to how I can get live TV back up and running?

Many thanks
Using Tapatalk

Posts: 519
Joined: Mon Jul 25, 2016 4:16 pm
Great Britain

Re: Channel Unavailable

Post by MikeB2013 » Tue May 21, 2019 2:56 pm

Channel Unavailable is usually caused by tuning timeout (your log shows timeout of 5000ms) in pvr.mythtv of Kodi.
In pvr.mythtv addon change Tuning Delay (sec) from 5 to 10 in Advanced Tab.

If that does not work:
Check security pin in mythbackend is same as in pvr.mythtv addon (General tab), usually set to 0000
Check mythtv-setup General Primary IP address/DNS Name has a real ip address NOT

You could also enable "Include more debug information in the log file" in Advanced tab of pvr.mythtv addon


Post Reply