Channel information lost after upgrade from MythTV 29 to 30

[Jarno Suni]

When I view recordings by frontend it shows strings like "#1024 #1024" where there used to be channel name. New recordings made after upgrade do not have this.

MythTV version 2:30.0+fixes.201912012038.a27754a~ubuntu19.10.1

[Jarno Suni]

Upgraded from 2:29.1+fixes.201909121531.4c432df~ubuntu18.04.1 to 2:30.0+fixes.201912012038.a27754a~ubuntu18.04.1

[jpilk]

Something like this bit me several months ago, and there was some discussion that I can't now find.

It may be a result of Changeset 503218e716 in mythtv from Sep 6, 2018 after deleting and re-establishing a channel list.

chanid: use default of five digits, as that allows more human readability when sources have thousands of channels

[Jarno Suni]

I think it could be made backwards compatible so that if chanid < 10000 it is handles the old way. That works, if sourceid is 1-9.

[Klaas de Waal]

I agree that this can be the result of 503218e716, most certainly if the old channel list was created before this change and when it affects all channels.

This has been fixed in today's master (pre-v31), not by re-creating the same channel number, but by keeping the deleted channels alive in the twilight zone until there are no recordings anymore that refer to them.

Instead of deleting all channels and creating them again it is usually better to update them. With today's master (pre-v31) the channel numbers of existing channels are not changed.

Given that the problem is already solved your proposed solution will not be implemented and this ticket will be closed.

[Jarno Suni]

So it won't be fixed in 30 if I understood correctly :(

[gigem]

MythTV 31 is expected to be released soonish. That will include the fix Klaas described.