[mythtv-users] HDHomeRun getting Partial Lock (TLAM-V) on one channel

Marc Sherman msherman at projectile.ca
Thu Mar 31 13:20:26 UTC 2011


On 3/30/2011 11:40 PM, Kenneth Emerson wrote:
>>
>> Suddenly yesterday, one channel that previously worked fine has become
>> untunable. When I try that channel in live TV, it says that it's getting
>> a partial lock, and the tuning status shows TLAM-V (the G is missing).
>>
>> When I try to tune the same channel in the HDHomeRun gui config tool, it
>> works fine, and I can watch that channel in the mplayer window it pops up.
>>
>> Does anyone know what the G in the tuning status means, and why that
>> channel would suddenly stop working in mythtv?
>>
>> http://www.mythtv.org/docs/mythtv-HOWTO-23.html#ss23.21

Thanks for the link, Ken. The G refers to the "Master Guide Table", 
which appears to be part of the PSIP metadata for the channel.

CFTO-DT appears to have a history with messed up PSIP over the years:
http://www.google.ca/search?hl=en&q=cfto+psip&aq=f&aqi=&aql=&oq=

But that doesn't explain what could be causing MythTV to fail to tune 
it, while the HDHomeRun config tool can tune it just fine. Perhaps 
there's something residual in my frequency table that re-scanning the 
transport didn't clean up? I'll try deleting the transport entirely and 
re-scan again.

- Marc


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