In both cases the MythTV server is running on Debian GNU/Linux 10 (buster), both patched every few weeks.
The MythTV build dates back to 2019, and was cloned from:
I realise that I need to update, but it's been mostly reliable for a long time, and I have a specific new problem that has recently materialised in Merimbula, but not in Bega.
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git clone https://github.com/MythTV/packaging.git -b fixes/30
The local TV broadcasters are ABC, SBS, Seven, Nine, and Ten.
My DVB-T tuners are similar on both servers, with a pair of USB tuners on each host, and network connected HD Homeruns. They have all performed flawlessly for many years.
My new problem is that I can't use MythTV to tune anything from Channel 9 at Merimbula, no matter which tuner I select. I have no such problem at Bega (different signal source).
However, when I use the tuner in the TV set, I have no problems. Channel 9 is fine!
My signal is excellent typically 90 to 96%.
I have re-scanned the spectrum from the backend setup on the server several times. There is no problem identifying Nine with the scanning process.
When I try to watch anything from Nine, the text at the bottom of the screen will say:
and that's where it stops. The problem is identified by the lower case "s" in "TLMs". When tuning works, you get "TLMS".
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Signal 91% | BE 0 | (TLMs) Partial Lock
I'm thinking that there is is issue with the broadcast signal for Nine at Merimbula.
My next step is to upgrade MythTV, but I'd like to see if I can understand the nature of the problem before making any more changes.
Does anyone have any insight into the problem?