How to disable a tuner?

[liteswap]

I want to disable a tuner.

I know I can delete the configuration but I want something less drastic than scorched earth. I've tried disabling all the channels associated with one of my tuners and then updating the EPG.

This, you would think, would cause PVRX2 to not fire up this tuner when a recording is called for but PVRX2 still allocates programmes for recording to it - resulting of course in a blank, zero-length file. Any thoughts on how to achieve this?

[Snooze]

How about creating a duplicate of your other tuner(s) and putting at the top of the capture source list? Basically surrounding the one you dont want to use with the tuner(s) you want to use in the order you want to use them.

[dennit]

I want to disable a tuner.

I know I can delete the configuration but I want something less drastic than scorched earth. I've tried disabling all the channels associated with one of my tuners and then updating the EPG.

This, you would think, would cause PVRX2 to not fire up this tuner when a recording is called for but PVRX2 still allocates programmes for recording to it - resulting of course in a blank, zero-length file. Any thoughts on how to achieve this?

If you disabled the channels associated with the source (tuner), then it shouldn't be able to schedule a programme on that source.

The gbpvr.db3 database has the following tables:
CAPTURE_SOURCE (one entry for each tuners),
CHANNEL (one entry for each channel, regardless of how many tuners can tune the channel),
PROGRAMME (one entry for each programme on each channel),
SOURCE_CHANNEL_MAPPING (one entry for each channel on each source - if the same channel is available on 3 sources, there will be 3 entries, if you disable a channel on a source, it marks it here.)

When you schedule a programme from PROGRAMME it knows the channel for that programme, then looks in SOURCE_CHANNEL_MAPPING to find an available source that can tune that channel. If you have disabled a channel from a source, it should have marked it in SCM and not selected it for the recording.

If I was looking into this, I'd use SQLiteSpy to check the database.

[imagn]

I want to disable a tuner.

I know I can delete the configuration but I want something less drastic than scorched earth. I've tried disabling all the channels associated with one of my tuners and then updating the EPG.

This, you would think, would cause PVRX2 to not fire up this tuner when a recording is called for but PVRX2 still allocates programmes for recording to it - resulting of course in a blank, zero-length file. Any thoughts on how to achieve this?

I think the one step you missed here is that you need to empty the epg and then update it. From my understanding if you empty the epg, it then update it will force GBPVR to reallocate recordings to the tuners that are active. Simply updating the epg may not do this. I have seen this when i added a tuner and there were still conflicts, I just emptied EPG then updated it and it updated my scheduled recordings accordingly

[martint123]

Yup, I'm fairly sure that any pending recordings will still be allocated to that tuner.
Until the EPG update that includes emptying it takes place.

[dennit]

Yup, I'm fairly sure that any pending recordings will still be allocated to that tuner.
Until the EPG update that includes emptying it takes place.

Hmmmmm. The recording was put into the RECORDING_SCHEDULE table when first scheduled (or at the time of an EPG update for recurring) and merely disabling the channel would not affect one time scheduled programs. I think recurring scheduled programmes should have been reallocated, as I believe it removes all entries for the recurring program from RECORDING_SCHEDULE except for the very first one, then recalculates them. I assumed he was talking about newly scheduled programs being allocated to the disabled tuner, not previously scheduled or recurring.

When he scheduled a programme, the PROGRAMME table identified a particular channel, and GBPVR selected a particular tuner, then put that scheduled show into the RECORDING_SCHEDULE table. I don't think there's any procedure for undoing that process, except for recurring schedules, where it doesn't undo the first one, but does undo and redo the subsequent shows for each EPG update.

I suspect there's no standard way to "shift" previously scheduled programs off of the disabled tuner. I'm not sure if emptying the EPG will even deal with them. (Does GBPVR ever look at the RECORDING_SCHEDULE table to see if channels have been disabled from a source after the entry was made?) I can think of ways to do it manually with SQL, but I'm not sure if that's what he wants.

[liteswap]

Thanks for the insights guys - it's a bit more complex than I thought, then! Maybe a bit more reason for sub to consider adding an enabled/disabled checkbox for each tuner since, as it stands, taking the rational route of disabling channels to cut a tuner out of the loop in fact does nothing of the kind (and if I recall correctly) would explain some of the incongruous behaviour I've noted previously. Makes me wonder why that feature's there at all...

[martint123]

Hopefully it's in hand
http://forums.nextpvr.com/showthread.php...ht=disable