<tt><font size=2>mythtv-users-bounces@mythtv.org wrote on 24/01/2010 20:23:42:<br>
<br>
> From: Matthias Thyroff <nospam2@thyroff.net></font></tt>
<br><tt><font size=2>> To: Discussion about mythtv <mythtv-users@mythtv.org></font></tt>
<br><tt><font size=2>> Date: 24/01/2010 20:24</font></tt>
<br><tt><font size=2>> Subject: Re: [mythtv-users] Help wanted with
mixed SD/HD Setup (DVB-<br>
> S, Astra 19.2°)</font></tt>
<br><tt><font size=2>> Sent by: mythtv-users-bounces@mythtv.org</font></tt>
<br><tt><font size=2>> <br>
> Another Sillyname wrote:<br>
> > 2010/1/24 R. G. Newbury <newbury@mandamus.org>:<br>
> > <br>
> >> On 01/24/2010 06:40 AM, Matthias Thyroff wrote:<br>
> >> <br>
> >>> Hello All,<br>
> >>><br>
> >>> being right in the process of reconfiguring my 0.22 myth
system from<br>
> >>> scratch, I am not sure how to handle the channel setup
for my mixed<br>
> >>> SD/HD setup, I hope you can set me on the right track:<br>
> >>><br>
> >>> Setup:<br>
> >>> Myth Backend (Ubuntu 9.10, mythbuntu repositories for
0.22-fixes weekly<br>
> >>> builds)<br>
> >>> with 1x Technisat DVB-S SD receiver and 1x Hauppauge
DVB-S2 HD receiver,<br>
> >>> both pointing to Astra 19.2°E.<br>
> >>> Video Source: EPGDATA commercial service (XMLTV).<br>
> >>><br>
> >>> I have configured EPGDATA as source 1. I have linked
both cards to this<br>
> >>> source.<br>
> >>> <br>
> >> Yes, this approach is wrong. You match cards to sources,
where any card on<br>
> >> the source can tune ALL of the channels from that source.
Your cards cannot<br>
> >> do that.<br>
> >> You need to set up 2 sources even though they are pointed
at the <br>
> same actual<br>
> >> transmitter. One source for SD, and one source for HD. That
way the<br>
> >> Hauppuage tuner is the only one which gets presented with
HD channels.<br>
> >><br>
> >> <br>
> >>> If I scan the channels with the DVB-S2 card, it will
find a lot of SD<br>
> >>> channels and some HD channels.<br>
> >>><br>
> >>> All the found channels then are available for tuning
for both cards, of<br>
> >>> course this fails if I try to do that with the SD-only
card.<br>
> >>><br>
> >>> I would not like to set up two video sources (one SD
only, one SD and<br>
> >>> HD) because downloading two times ... most importantly,
does not seem to<br>
> >>> be the right way (I could name technical reasons, too.)<br>
> >>> <br>
> >> It is actually the correct way. If the HD receiver can also
receive the SD<br>
> >> channels, then it will be a larger list of channels. If not
you will have 2<br>
> >> mutually distinct channel lists.<br>
> >><br>
> >> <br>
> >>> I have tried to set up one additional video source for
the few HD<br>
> >>> channels only and limit the source to EIT data, that
would be acceptable<br>
> >>> for now (German HD channels aren't reproduced properly
anyway in the<br>
> >>> actual 0.22-fixes version from the mythbuntu repo), but
I can't find a<br>
> >>> way to attach two video sources to one card.<br>
> >>> <br>
> >> That is not possible, due to the constraint that a tuner
attached to a<br>
> >> source must be able to tune all of the channels in that source.<br>
> >><br>
> >> <br>
> >>> Basically, what I would need is the possibility to exclude
a number of<br>
> >>> channels from being tuned with one of my cards. Is that
possible? Maybe<br>
> >>> my approach is all wrong?<br>
> >>> <br>
> >> You will have to set up 2 lineups. It should not be that
hard with XMLTV.<br>
> >> The overall download should not be that any larger being
split into 2<br>
> >> chunks. Only if the HD receiver also gets the SD channels,
AND your xmltv<br>
> >> program does NOT cache data, would the download be any bigger.
The xmltv<br>
> >> program used by mythtv for Schedules Direct caches data for
re-use. Your<br>
> >> version probably does too.<br>
> >><br>
> >> Geoff<br>
> >><br>
> >><br>
> >><br>
> >> --<br>
> >> Please let me know if anything
I say offends you.<br>
> >> I may wish to offend you again
in the future.<br>
> >><br>
> >> Tux says: "Be regular. Eat
cron flakes."<br>
> >><br>
> >> _______________________________________________<br>
> >> mythtv-users mailing list<br>
> >> mythtv-users@mythtv.org<br>
> >> </font></tt><a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users"><tt><font size=2>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</font></tt></a><tt><font size=2><br>
> >><br>
> >> <br>
> ><br>
> > Also be aware that sometimes your cards will load in different
order<br>
> > unless you force the load order. It's to do with how quickly
the<br>
> > firmware loads into a card and then that card gets presented
to the<br>
> > kernel sooner. Hot reboot and Cold Reboot affects the firmware<br>
> > loading time.<br>
> > _______________________________________________<br>
> > mythtv-users mailing list<br>
> > mythtv-users@mythtv.org<br>
> > </font></tt><a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users"><tt><font size=2>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</font></tt></a><tt><font size=2><br>
> > <br>
> Hi,<br>
> <br>
> and thanks for both replies. I was afraid I had to create two lineups,
<br>
> that is a pitty because it is going to be two times exactly the same
<br>
> lineup, once with four additional HD channels of which three are the
HD <br>
> version of other available channels. My feeling is that the EPGDATA
<br>
> script does not do caching, well I will see.<br>
> <br>
> Regarding the device order, surprisingly it seems that the DVB-S <br>
> Technisat very consitently is the first one up - that is good because
I <br>
> never got the UDEV-Rule writing right, I have to admit. Before, I
was <br>
> blacklisting and rc.local-loading a second card, but I did not find
out <br>
> how to blacklist the Hauppauge properly (actually, I got it blacklisted,
<br>
> but when manually loading the module, the dvb device would not be
<br>
> created, I don't know why). But that works anyway.</font></tt>
<br>
<br><tt><font size=2>In case it is of any help, I couldn't get udev to
do the job, so I wrote a script to force the order of the cards...</font></tt>
<br><tt><font size=2>As luck would have it I just put it on the wiki today...</font></tt>
<br>
<br><a href=http://www.mythtv.org/wiki/Force_DVB_Card_Order><tt><font size=2>http://www.mythtv.org/wiki/Force_DVB_Card_Order</font></tt></a>
<br>
<br><tt><font size=2>Note: I know its very much not the 'correct' way to
do it, but works 100% for me..... (better than can be said for udev!)</font></tt>
<br><tt><font size=2><br>
> <br>
> OK, some more channel scanning then, I am getting more and more practice!<br>
> <br>
> Cheers,<br>
> <br>
> Matthias<br>
> _______________________________________________<br>
> mythtv-users mailing list<br>
> mythtv-users@mythtv.org<br>
> </font></tt><a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users"><tt><font size=2>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</font></tt></a><tt><font size=2><br>
</font></tt>
<br>
<br>
<br><font size=2 face="sans-serif">Alex</font>
<br>
<br><font size=2 face="sans-serif">alex@apics.co.uk</font>
<br>
<br><font size=2>Homer Simpson: Facts are meaningless. You could use facts
to prove anything that's even remotely true!</font>
<br>
<br>