[mythtv-commits] Ticket #13014: switching to required delivery system

[MythTV]

#13014: switching to required delivery system
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 Reporter:  willem@…              |          Owner:  Klaas de Waal
     Type:  Bug Report - General  |         Status:  assigned
 Priority:  minor                 |      Milestone:  31.0
Component:  MythTV - DVB          |        Version:  0.28.0
 Severity:  medium                |     Resolution:
 Keywords:                        |  Ticket locked:  0
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Comment (by Klaas de Waal):

 Interesting!

 It looks like the scan itself uses the correct modulation system as it
 does change from DVB-S to DVB-S2 and vice versa, as shown by the following
 bits of debug output from mythtv-setup2-with-console-output.log (with line
 numbers):

 {{{
     430 Old Params: 10714000 qpsk a auto auto a a auto a h fec: auto msys:
 DVB-S rolloff: 0.35
     431 New Params: 11758500 qpsk a auto auto a a auto a h fec: auto msys:
 DVB-S2 rolloff: 0.35
     432 2019-04-12 16:24:59.923974 I
 DVBChan[1](/dev/dvb/adapter0/frontend0): Tune(): Tuning to 11758500kHz
     433 2019-04-12 16:24:59.981260 D  DVBChan: modsys DVB-S2
     434 2019-04-12 16:24:59.981296 D
 DVBChan[1](/dev/dvb/adapter0/frontend0): prop 0: cmd = 17, data 6
     ....
     543 Old Params: 11758500 qpsk a auto auto a a auto a h fec: auto msys:
 DVB-S2 rolloff: 0.35
     544 New Params: 11778000 qpsk a auto auto a a auto a v fec: 2/3 msys:
 DVB-S rolloff: 0.35
     545 2019-04-12 16:25:12.309666 I
 DVBChan[1](/dev/dvb/adapter0/frontend0): Tune(): Tuning to 11778000kHz
     546 2019-04-12 16:25:12.309786 I  DiSEqCDevTree: Changing LNB voltage
 to 13V
     547 2019-04-12 16:25:12.505274 D  DVBChan: modsys DVB-S
     548 2019-04-12 16:25:12.505319 D
 DVBChan[1](/dev/dvb/adapter0/frontend0): prop 0: cmd = 17, data 5

 }}}
 However, the dtv_multiplex is definitely wrong and should have DVB-S or
 DVB-S2 where appropriate instead of having DVB-S2 everywhere.

 It is interesting to know if:
 - you started with a correct dtv_multiplex, i.e. with DVB-S and DVB-S2
 correct filled in, and the scan did "destroy" the dtv_multiplex (rescan
 existing transports)
 - or if you started with an empty dtv_multiplex and everything comes from
 the NIT (full scan tuned)

 Can you please do an identical scan with, in addition to "general,
 channel, record" also "chanscan", again with --loglevel=debug ?

 Thanks!
 Klaas.

-- 
Ticket URL: <https://code.mythtv.org/trac/ticket/13014#comment:44>
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