Opened 5 months ago

Closed 3 weeks ago

#13458 closed Bug Report - General (Invalid)

Missing program listings if 1st tuner not pulling info

Reported by: bib1963 Owned by:
Priority: minor Milestone: needs_triage
Component: MythTV - General Version: Unspecified
Severity: medium Keywords:
Cc: Ticket locked: no

Description

Take 2 tuners, both pointed to the same source. Meaning each will point to the same channel.

Disconnect the first tuner from the physical setup, but leave the 2nd.

Once the EIT scan has completed, the db should find that there are no programs listed against the first tuner, but there are against the 2nd.

If you go into Program Finder, they are all listed.

Now go into the program guide. You will find that the program data is listed as unknown.

Then bring up live tv and browse the channel data using the 'o' key. As you go down the channel list, you will find that the program details are given, but once you start going up the channel list, they disappear.

Change History (3)

comment:1 Changed 7 weeks ago by Klaas de Waal

Status: newinfoneeded_new

This behavior is possible with a configuration mistake. It could be that you have configured each tuner with its own video source.

If you have two tuners that receive the same antenna signal then, in general, you should have only one video source and both tuners (a.k.a. capture cards) should be connected to that video source.

This is how it works.

The guide data from an EIT scan is associated with a video source. All tuners connected to that video source can be used to record programs in that guide. It does not matter which tuner is configured to do the EIT scan.

Along the same lines, you only need to do a mythtv-setup Channel Scan on one tuner of a video source. All tuners connected to that video source can then be used to record programs from channels of that video source.

If you have two different video sources with the same channels then the guide shown by mythfrontend becomes confused; there is only one line for each channel but the programs shown can be from either video source.

Combining all this it means that if there are two tuners, each tuner with its own video source, a Channel Scan is done with each tuner and but then a partial EIT scan is done on one tuner and a full EIT scan on the other tuner, you can get exactly the behavior that you describe.

Please do check your configuration and report your findings.

If the problem persists then please give a more detailed, step-by-step description on how to reproduce the problem, preferably on the latest master.

comment:2 Changed 5 weeks ago by bib1963

No, they should not point to the same source. If one is a T & the other is T2, then that is going to cause additional problems.

comment:3 Changed 3 weeks ago by Klaas de Waal

Resolution: Invalid
Status: infoneeded_newclosed

The problem, as described, indicates that if you disconnect a physical tuner there is no EIT guide data for the video source connected to that tuner.

This is to be expected.

The remainder of the problem description follows as a consequence of the missing guide data for that video source and therefore there is no problem.

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