[mythtv-users] adding dvb-c channels

[John Pilkington]

On 13/07/13 19:44, Yann Lehmann wrote:
> On 20. 06. 13 13:03, Jelte Veldstra wrote:
>>
>> You could try a manual scan using the scan utility of dvbtools from the
>> command line. From there you can edit the channels and dtv_multiplex
>> tables. Manually editing the tables is not recommended and making extra
>> backups is advised.
>>
>>
>
> It's been a while from this answer.
>
> Since then, I have tried to scan the channels several times, from
> mythtv-setup and with the dvbtools.
>
> scan and w_scan find the same channels, and all those who are provided
> fta are there.
>
> mythtv-setup misses some transports completely.
>
> I will try to insert the missing transports in the 'dtv_multiplex' table
> manually, and the scan again from mythtv-setup.
>
> But there are several columns in the 'dtv_table', for which I don't know
> the value to insert. These are 'mplexid' and 'transportid'. How can I
> find out the appropriate values for those fields ? They are not in the
> 'channels.conf' file generated with scan or w_scan.
> QAM236
> Thanks and regards
> Yann
>

I've never used cable, but do scan/w_scan show modulation types that 
differ from the others for the transports that mythtvsetup misses?  I 
have to specify that (QAM-256 rather than QAM-64) for my DVB-T2 
transport before mythtvsetup will detect it.