<div dir="ltr"><div>See comments below.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, 2 Jan 2022 at 13:50, Robert <<a href="mailto:2201mythtvml@rainbow.in-berlin.de">2201mythtvml@rainbow.in-berlin.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Dear MythTV users,<br>
<br>
I'm missing EPG for a number of channels.<br>
The problem started mid December when several channels announced that they were changing their place and that viewers should rescan.<br>
I rescanned several times, but this did not fix the issue.<br>
Strangely, MythWeb showed a channel that I had deleted in mythtv-setup.<br></blockquote><div><br></div><div>This can happen if you have an old version of MythWeb. Nowadays when a channel is deleted it is not immediately removed from the database but it is marked for deletion later. This is fixed in the latest version of MythWeb.</div><div>I recommend using mythtv-setup for all configuration activities. </div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
So I gave up, deleted all channels, video sources and capture cards and created them anew.<br></blockquote><div><br></div><div>This is a good action.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
First, only 39 channels appeared in the scan. Only after turning off "Logical Channel Numbers required" I got 86 more of the usual channels.<br></blockquote><div>This option is described in the Wiki on page <a href="https://www.mythtv.org/wiki/Channel_Scanning#Logical_Channel_Numbers_required">https://www.mythtv.org/wiki/Channel_Scanning#Logical_Channel_Numbers_required</a>.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
But then again, a number of channel don't get EPG. I checked the channel settings, and strangly these were added with "Use 'Over-the-Air' programme listings" off.</blockquote><div><br></div><div>This should not have happened. Check, just to be sure, the settings of your capture cards and of the video source to make sure that EIT is enabled.</div><div>See the Wiki in pages <a href="https://www.mythtv.org/wiki/Channel_Scanning#Use_DVB_card_for_active_EIT_scan">https://www.mythtv.org/wiki/Channel_Scanning#Use_DVB_card_for_active_EIT_scan</a> and <a href="https://www.mythtv.org/wiki/Channel_Scanning#Listings_grabber">https://www.mythtv.org/wiki/Channel_Scanning#Listings_grabber</a>.</div><div>Maybe do "Delete all channels" in the Channel Editor of mythtv-setup and scan again.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> I turned the setting on for the channels but this did not help.<br>
What the channels lacking EPG have in common is the same two mplexid values.<br>
I turned debugging on for eit, but all I can see is that it seems to scan the two mplexids.<br>
So, I wonder whether it's the data that is missing or the software that has problems with the data on the two mplexes.<br>
How to find out?<br></blockquote><div>Check that an ordinary TV shows the EPG guide data. If a TV can do it then MythTV should also be able to get the EPG guide data.</div><div>What sometimes happens is that guide data is sent encrypted over a data channel and not according to DVB standards.</div><div>In that case the guide data is only available when using a provider-supplied set-top-box. It could just be that your provider is moving in this direction.</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
I have a quadHD card connected to some kind of DVB-C that comes via FTTH (fiber), in Germany.<br>
I'm running MythTV 1:31.0+fixes20211113.git25f1bb1d12-dmo0+deb11u1 on Debian 11 (upgraded from 10 a few days ago but that did not fix the EPG problem).<br>
(/etc/apt/sources.list: deb <a href="http://ftp.uni-kl.de/debian-multimedia/" rel="noreferrer" target="_blank">http://ftp.uni-kl.de/debian-multimedia/</a> bullseye main)<br>
<br>
Thanks,<br>
Robert<br>
<br>
Jan 02 12:22:25 hostname mythbackend[1310]: 2022-01-02 12:22:25.320880 E MPEGStream[3](0x7f8e50079368): Error: AFCOffset(4)+StartOfFieldPointer(182)>184, pes length & current cannot be queried<br></blockquote><div>These messages should not be there on a regular basis. Does this really happen with the latest mythtv v31-fixes?</div><div>It is possible that there is room for improvement in the way MythTV does parse the streams.</div><div><br></div><div>Klaas.</div><div><br></div></div></div>