[Solved] Hauppauge WinQuadHD - no DVB-C with MyTHTV 30

[Torbert]

Hello,
after upgrading from 0.29 to 30, i was not able to select DVB-C on the frontends. Only DVB-T2 was possible.
Channelscan within MythTV only scanned then DVB-T2 channels.
The frontends are switched to DVB-C:

Code: Select all

 sudo dvb-fe-tool -a0
[sudo] Passwort für xxxx:
Gerät Silicon Labs Si2168 (/dev/dvb/adapter0/frontend0) Fähigkeiten:
     CAN_2G_MODULATION
     CAN_FEC_1_2
     CAN_FEC_2_3
     CAN_FEC_3_4
     CAN_FEC_5_6
     CAN_FEC_7_8
     CAN_FEC_AUTO
     CAN_GUARD_INTERVAL_AUTO
     CAN_HIERARCHY_AUTO
     CAN_INVERSION_AUTO
     CAN_MULTISTREAM
     CAN_MUTE_TS
     CAN_QAM_16
     CAN_QAM_32
     CAN_QAM_64
     CAN_QAM_128
     CAN_QAM_256
     CAN_QAM_AUTO
     CAN_QPSK
     CAN_TRANSMISSION_MODE_AUTO
DVB-API-Version 5.10, derzeitiges V5-Liefersystem: DVBC/ANNEX_A
unterstützte Übertragungssysteme:
     DVBT
     DVBT2
    [DVBC/ANNEX_A]

OS is Ubuntu 18.04.3 LTS

Channelscan with w_scan was succesful.

After downgrading (because of WAF) to 0.29 everything was fine including epg.

Any ideas, please?

[MikeB2013]

Short answer: Stay with mythtv 29 until mythtv 31 is released (no date yet).

More detail:

There is no easy fix for this problem with mythtv 30 see mythtv trac issue https://code.mythtv.org/trac/ticket/13014
From Comment 11 The root cause was mythtv lacking support for multi-standard frontends and the move to DVB V5 API from DVB V3 API.
Comment 9 has a patch but requires building from source, I don't know if the patch will work with current mythtv 30, as the patch is quite old.

This problem has been fixed in current master which is the next version of mythtv and is in development (mythtv 31) and is available via mythbuntu ppa 31. Being in development there are continual changes which does break mythtv at times, does not happen often and is usually fixed quickly (24-48 hours).
The changes to properly fix the issue were extensive, multi-standard frontends are now fully supported, including those with a single demux.

Mike

[Torbert]

Thank you, Mike,

so I'll stay with 29.

[paulh]

Short answer: Stay with mythtv 29 until mythtv 31 is released (no date yet).

The current plan is to release 31 around January 14th 2020 which is inline with the typical dev freeze dates for Ubuntu 20.04, which will be the next LTS release although as always things can change.
https://code.mythtv.org/trac/milestone/31.0