[mythtv-users] Recordings problems after FCC bandwidth grab

Michael T. Dean mtdean at thirdcontact.com
Mon Nov 5 12:01:07 UTC 2018


On 11/02/2018 05:01 PM, Christopher Sean Hilton wrote:
> On Sat, Oct 27, 2018 at 12:18:42AM -0400, John Wolf wrote:
>>     Hello,
>>     I have a myth system that started as a mythbuntu system with .25 & Ubuntu 12.04
>>     running an us ota hdhr. It is currently on Myth .27.  When a couple of the
>>     stations had to give up their spectrum they combined their transmissions with
>>     their sister stations in the same area.
>>     Ever since, recording shows on these channels most of the time the recording
>>     stops before the end of the show and later recrecordings on other channels fail.
>>     I have deleted all the tuner, channel and transport data and rescanned the
>>     channels.  At this point channel 26 is being transmitted by channel 2, and
>>     channel 45 is transmitted by channel 22.  All the schedule data is being received
>>     for all the channels and it starts recording the shows but has problems after the
>>     shows start.  If it is just recording shows from the channels that did not change
>>     it works fine.
>>     I wondered if anyone has seen this behavior after the changing of the channels.
>>     Thanks for any suggestions.
>>     John
> The FCC project is called "Repack". I also started with mythbuntu and
> upgraded as far as I could. I get OTA channels from a set of HDHomeRun
> devices that are connected to antenna feeds in my attic. This is
> because it's easier to get TCP/IP into my basement where the mythtv is
> than it would be get get raw coax from the attic antenna feeds.
>
> For "Repack" I had to delete my HDHomeRun tuners, then rescan
> them. The last step was to re-attach each channel to the it's schedule
> data. This worked fine for me but we are only in the first phase of
> repack here. Before I did this I got blank recordings because the
> mythtv would improperly program the HDHomeRun's tuner.

Yeah, you're almost definitely leaving something configured for the old 
channel information that's causing the problem.  I have no idea what, 
specifically, but the easiest way to ensure you get a clean scan is to 
"Delete all Video Sources" in mythtv-setup and then reconfigure.  See 
https://lists.gt.net/mythtv/users/264034#264034 .

Mike


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