[mythtv-users] "Wrong PMT" Is this me, or the broadcaster?

[Howard Lowndes]

On Mon, January 31, 2011 14:40, Michael T. Dean wrote:
>   On 01/30/2011 04:47 PM, Howard Lowndes wrote:
>> I have had a problem arise in the past 3-4 days with one of the
>> multiplexers giving "(LMs) Partial Lock" on all of the channels from
>> that
>> multiplex.  As I have made no changes to Mythtv recently I suspect that
>> it
>> is a problem with this one broadcaster.
>>
>> My location is regional Australia and we have 5 free-to-air broadcasters
>> and these are identically from a choice of 2 towers, one operating in
>> the
>> VHF band and the other in the UHF band.
>>
>> This particular mux has 3 programs which are identified:
>>    Channel 8  - WIN - sectionid 1
>>    Channel 80 - GEM - sectionid 10
>>    Channel 88 - GO! - sectionid 2
>>
>> I have deleted these channels and rescanned the mux successfully using
>> both transitters and the data in the MySQL database is the same as
>> previous, but when I try to tune any of these 3 channels I get 2
>> messages
>> each time in the backend log of the form:
>>    Wrong PMT: pmt->pn(y) preferred (x)
>>    Wrong PMT: pmt->pn(z) preferred (x)
>> where x matches the correct sectionid above but y and z match the other
>> 2
>> sectionids above.
>>
>> Using an independent DVB-T receiver (not Mythtv) I can receive these
>> channels with no problems.
>>
>> I suspect that the broadcaster has changed something and whatever it is
>> is
>> causing Mythtv to barf.
>>
>> I guess what I really need to know is how to overcome the problem.
>
> I'd guess (and it's just a guess) it's time for a rescan.

I have already rescanned the relevant multiplexer from both towers.  It
finds the channels fine, but still won't let tune the programs served by
that mux.  As the problem is restricted to this mux only, I don't see that
a full rescan would do anything useful.



>
> Mike
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>


-- 
Howard
LANNet Computing Associates <http://lannet.com.au>
When you want a computer system that works, just choose Linux;
When you want a computer system that works, just, choose Microsoft.