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<div class="moz-cite-prefix">On 01. 05. 18 15:39, Alain wrote:<br>
</div>
<blockquote type="cite"
cite="mid:ffafa8bc-5006-7668-1645-ea02f5328b8c@alain.homeunix.org">
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<div class="moz-cite-prefix">On 01. 05. 18 14:52, Stephen
Worthington wrote:<br>
</div>
<blockquote type="cite"
cite="mid:v2ogedtrh9j602df5556936ome9a6u6l0u@4ax.com">
<pre wrap="">On Tue, 1 May 2018 13:32:54 +0100, you wrote:
</pre>
<blockquote type="cite">
<pre wrap="">On 01/05/18 13:14, Alain wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Hi,
On the 24th, the French did something to their emitters and we need
to rescan. TF1 works, but "France 2" fails. The Swiss channels all work.
However, using mythtv-setup, the scan option never detects any channels:
"no new channels found"; even after I delete all channels from the
channel table.
If I run
w_scan -c CH > /var/tmp/channels.conf
The channels are detected proving that they are there:
C8;NTN:474000:B8D0G8M64T8Y0:T:27500:120=27:0;130,131,132:0;140,141:0:513:8442:2:0
BFM TV;NTN:474000:B8D0G8M64T8Y0:T:27500:320=27:0;330:0;340:0:515:8442:2:0
CNEWS;NTN:474000:B8D0G8M64T8Y0:T:27500:420=27:0;430:0;440:0:516:8442:2:0
CSTAR;NTN:474000:B8D0G8M64T8Y0:T:27500:520=27:0;530,531:0;540,541:0:517:8442:2:0
Gulli;NTN:474000:B8D0G8M64T8Y0:T:27500:620=27:0;630,631,632:0;640,641:0:518:8442:2:0
France 2;GR1
B:666000:B8D0G8M64T8Y0:T:27500:120=27:0;130,131,132:0;140,142:0:257:8442:1:0
France 4;GR1
B:666000:B8D0G8M64T8Y0:T:27500:320=27:0;330,331,332:0;340,342:0:260:8442:1:0
France Ô;GR1
B:666000:B8D0G8M64T8Y0:T:27500:520=27:0;530,531:0;540:0:261:8442:1:0
franceinfo ;GR1
B:666000:B8D0G8M64T8Y0:T:27500:620=27:0;630:0;640:0:262:8442:1:0
F3
Rh?ne-Alpes;FTV:666000:B8D0G8M64T8Y0:T:27500:220=27:230=fre@3,231=qad,232=qaa:0;240,242:0:282:8442:1:0
F3
Alpes;FTV:666000:B8D0G8M64T8Y0:T:27500:720=27:730=fre@3,731=qad,732=qaa:0;740,742:0:324:8442:1:0
M6;Multi4:506000:B8D0G8M64T8Y0:T:27500:120=27:0;130,131,132:0;140,141:0:1025:8442:4:0
W9;Multi4:506000:B8D0G8M64T8Y0:T:27500:220=27:0;230,231,232:0;240,241:0:1026:8442:4:0
Arte;Multi4:506000:B8D0G8M64T8Y0:T:27500:320=27:0;330,331,332,333:0;340,341,342:0:1031:8442:4:0
France
5;Multi4:506000:B8D0G8M64T8Y0:T:27500:420=27:0;430,431,432:0;440,441:0:1045:8442:4:0
6ter;Multi4:506000:B8D0G8M64T8Y0:T:27500:520=27:0;530,531,532:0;540,541:0:1046:8442:4:0
TF1;SMR6:498000:B8D0G8M64T8Y0:T:27500:120=27:0;130,131,132:0;150,151:0:1537:8442:6:0
NRJ12;SMR6:498000:B8D0G8M64T8Y0:T:27500:220=27:0;230,231,232:0;250,251:0:1538:8442:6:0
TMC;SMR6:498000:B8D0G8M64T8Y0:T:27500:620=27:0;630,631,632:0;650,651:0:1542:8442:6:0
TFX;SMR6:498000:B8D0G8M64T8Y0:T:27500:520=27:0;530,531:0;550,551:0:1544:8442:6:0
LCP;SMR6:498000:B8D0G8M64T8Y0:T:27500:720=27:0;730:0;750:0:1545:8442:6:0
8_Mont_Blanc;Harmonic:674000:B8D0G32M64T8Y0:T:27500:720=27:730=fra@3:0:0:2050:8442:8:0
LemanBleu HD;LemanBleu
TV:554000:B8:T:27500:516+515=27:517@3:518:0:513:0:3841:0
SRF 1;Schweizer Radio und
Fernsehen:578000:B8C23D0G4M16T8Y0:T:27500:160=2:80=deu@3,81=eng:32:0:1:8948:4:0
RTS Un;Radio Television
Suisse:578000:B8C23D0G4M16T8Y0:T:27500:161=2:84=fra@3,85=eng:35:0:257:8948:4:0
RTS Deux;Radio Television
Suisse:578000:B8C23D0G4M16T8Y0:T:27500:164=2:96=fra@3,97=eng:44:0:258:8948:4:0
RSI LA 1;Radiotelevisione
svizzera:578000:B8C23D0G4M16T8Y0:T:27500:162=2:88=ita@3,89=eng:38:0:513:8948:4:0
TF1, NRJ12, RTS* all work fine. But F3 or France 2, can no longer be
seen by mythtv. My real TV is able to pick all those channels, but I did
a rescan on it.
So mythtv-setup fails to find any channel anymore. I'm including the
logs of mythtv-setup. But I couldn't find anything useful in them.
fixes/29 [v29-rc1-4-g696806310a]
All channels seem to be shown with the message "Channel xx offset 1 --
Timed out, no si...". And then
"Failed to find any new channels!"
However, I can see the Signal Strength bar move to above 50% for some of
those channels.
I've included the log using --loglevel=debug. (Actually had to remove it
to pass the max message size lmit)
I'm also including a partial log of mythbackend --loglevel=debug when
I try to watch the TV.
First I "watched TF1" and that worked, then I changed to "France 2" and
I got the error that it couldn't get a lock.
There seems also to be a recording started on another channel (Swiss)
which worked fine.
In the log, look for:
2018-04-28 17:11:34.363564 I TVRec[17]: HandleTuning Request:
Program(NULL) channel(2) input() flags(LiveTV,)
2018-04-28 17:11:39.390308 W TVRec[17]: See 'Tuning timeout' in
mythtv-setup for this input
Otherwise, most recent version of Ubuntu 17.10.
System: Host: mytv Kernel: 4.13.0-39-generic x86_64 bits: 64 gcc:
7.2.0 Desktop: Xfce 4.12.3 (Gtk 2.24.31)
Distro: Ubuntu 17.10
MythTV Version : v29-rc1-4-g696806310a
MythTV Branch : fixes/29
Network Protocol : 91
Library API : 29.20170212-1
QT Version : 5.7.1
Given that I've been using MythTV for years, this is a bit
frustrating: channel scanning used to work just fine.
Alain Brossard
That was my thought too. The channels you are having problems with
seem to be all on the 666000 MHz multiplex. So if that used to be on
a different frequency, you may need to either scan that frequency
manually, or do a full scan of all frequencies. I believe w_scan will
just scan all frequencies, so it found the new frequency. MythTV will
only scan all frequencies if you tell it to do that, rather than to
scan the existing ones.
This sort of thing may well be better in v30 - I think the code for
scanning is being updated to better conform to the DVB-T standards,
which means that it should find the messages that get sent on one
frequency telling it to scan on a different frequency when things
move.
If you are up for some SQL, this command should show you all the
frequencies for your existing multiplexes:
select mplexid,sourceid,transportid,networkid,frequency from
dtv_multiplex;
If the frequency column does not have any entry where the frequency is
660000000, then your problem channels have moved to a new frequency.
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</pre>
</blockquote>
</blockquote>
</blockquote>
Hi, actually, it isn't only the 66000 frequency, but also the
506000 which is no longer working; not that this helps :-(.<br>
I confirm that neither is present in dtv_multiplex.<br>
I told mythtv to do a full scan so what can I do to tell it to
do a real full scan?<br>
<br>
Do I need to modify mplexid? If so, just tell me what I need to
insert. I've tried to do a "Full Scan(Tuned)" but got "Error
parsing parameters". <br>
Scan of existing transport: at least it found some already
existing channels whereas the "full scan" finds nothing.<br>
<br>
So what next?<br>
<br>
Alain<br>
</blockquote>
I've added the new frequencies to the table dtv_multiplex, but I'm
not sure what to use as value for mplexid and transportid. My first
attempt at mplexid 30/31 failed to scan at all.<br>
I've re-run a scan and the channels are now seen. However, those
at frequency <font face="Courier New, Courier, monospace">666000000
</font>still can't get a lock and those at frequency <font
face="Courier New, Courier, monospace">506000000</font>, though
they can be watched, the On-Air Program guide is empty, no program
info seems to be caught by MythTV.<br>
<br>
<font face="Courier New, Courier, monospace">select mplexid,
transportid, networkid, frequency from dtv_multiplex;<br>
+---------+-------------+-----------+-----------+<br>
| mplexid | transportid | networkid | frequency |<br>
+---------+-------------+-----------+-----------+<br>
| 3 | 4 | 8442 | 506000000 |<br>
| 2 | 4 | 8442 | 666000000 |<br>
</font><br>
The partial result from the new scan :<br>
<font face="Courier New, Courier, monospace">select
chch.transportid, chch.scanid, mplex_id, callsign, chan_num,
service_id, frequency from channelscan_channel chch,
channelscan_dtv_multiplex dtv where chch.transportid =
dtv.transportid and not is_data_service order by callsign, scanid;<br>
+-------------+--------+----------+-----------------+----------+------------+-----------+<br>
| transportid | scanid | mplex_id | callsign | chan_num |
service_id | frequency |<br>
+-------------+--------+----------+-----------------+----------+------------+-----------+<br>
| 210 | 26 | 2 | France 2 | 2
| 257 | 666000000 |<br>
| 210 | 26 | 2 | France 4 | 14
| 260 | 666000000 |<br>
| 210 | 26 | 2 | France Ô | 19
| 261 | 666000000 |<br>
| 210 | 26 | 2 | franceinfo: | 27
| 262 | 666000000 |<br>
| 220 | 27 | 3 | M6 | 6
| 1025 | 506000000 |<br>
| 220 | 27 | 3 | W9 | 9
| 1026 | 506000000 |<br>
<br>
</font><br>
I had erased both tables before running the latest scans which is
why we only have the results for the last 2 scans.<br>
I haven't figured out how to match from the table channel to these
two tables. I would like to do some clean up as everytime I run a
scan, I get more and more channels (/transportid/scanid).<br>
<br>
Alain<br>
<br>
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