No Live TV (Solved).

[pinnerite]

Following a rebuild from Mageia Linux 5 to Ubuntu 18.04, I installed Mythtv 29.0.
All seemed to be well until a kernel upgrade meant that I had to rebuild the kernel
drivers for my two-tuner TBS-6280 DVB-T2 tuner card.

dmesg tells me that the drivers are installed.

The initial problem was that Live TV could not be accessed and that no HD programmes could be selected for recording.
although at first I could get non-HD live TV from the channel selector.

Following a full channel scan even that just returns to the menu.

And this on Christmas Eve!

Where is Santa when you need him1

[wesnewell]

Just boot to the old kernel (from grub menu) if you want tv tonight and it worked with the old kernel. You could then remove the new kernel if you want to.

[pinnerite]

To do that I will have to kill the new kernel's media modules and rebuild the TV Card drivers.

Oh well!

[pinnerite]

Well that didn't work either.
No Live TV
Selecting items from the programme guide derives a 'recording failed' message.
After switching off the backend, which released the tuners, I started Kaffeine which works perfectly.
So, suspicion points at Mythtv (or rather my installation of it) rather than the kernel itself.
What tests can I make to pin this down?

[Steve Goodey]

Might be an idea to check permissions where the recordings are being stored. Are they OK for the user that the backend/frontend run as?

[pinnerite]

Thanks Steve. The subdirectories were all mysql:mythtv instead of mythtv:mythtv.
Just changing that fixed it.

Ironically I also have a problem on that machine with Kaffeine but this proves it is unrelated.
Thanks again.

[Steve Goodey]

No problem, glad I could help. Wonder how it got mysql:mythtv?

I'll mark as solved.