<br><div class="gmail_quote">On Sat, Apr 25, 2009 at 12:08 AM, David Lister <span dir="ltr"><<a href="mailto:foceni@gmail.com">foceni@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hello, please HELP! :)<br>
<br>
I guess this is quite a common setup, but I couldn't find anything<br>
relevant in the docs nor on the mailing list. I have 2x TeVii S640<br>
DVB-S2 cards (C1, C2). C1 input = cable, C2 input = C1 loop-out.<br>
Cable connects to one port of a DiSEqC multiswitch (2 LNB's).<br>
<br>
C1 -+-----[switch]----+- LNB1 (19.2E)<br>
C2 -+ +- LNB2 (23.5E)<br>
<br>
MythTV DiSEqC config works, I have all channels, LNB switching rock<br>
solid. If I had just one card (or two cards in two switch ports),<br>
the configuration would be finished. Thing is, I need to tell MythTV<br>
that there is ONE DiSEqC switch port shared among BOTH cards, i.e.<br>
MythTV can access only one LNB (aka "Video Source"?) at a time.<br>
<br>
Capture cards:<br>
[DVB : 0]<br>
DiSEqC: switch, 2 ports -> (LNB, LNB)<br>
[DVB : 1]<br>
DiSEqC: switch, 2 ports -> (LNB, LNB)<br>
Video sources:<br>
S19 [EIT]<br>
S23 [EIT]<br>
Input connections:<br>
[DVB : 0] -> Port 1 (LNB) -> S19<br>
[DVB : 0] -> Port 2 (LNB) -> S23<br>
[DVB : 1] -> Port 1 (LNB) -> S19<br>
[DVB : 1] -> Port 2 (LNB) -> S23<br>
<br>
I thought having just 2 video sources should take care of my<br>
setup, because with two independent cables I would probably<br>
have 4, one for each accessible LNB. But it doesn't seem to work<br>
this way. Unfortunately, I can't manage this exclusion manually;<br>
I use custom rules searching all over the table and I'd have to<br>
screen every recording for "undetectable" LNB conflicts...<br>
<br>
1) How to make sure MythTV is using only one LNB on both cards<br>
at a time?<br>
<br>
Second question is about input groups. With HVR-500 everything<br>
worked out of the box, but I'm having difficulties with DVB-S.<br>
Each card -> source connection has "Input Group 1" and "Input<br>
Group 2" properties.<br>
<br>
2) Could this be used for my shared DiSEqC switch port problem?<br>
3) How to set both input groups for 2 tuners (per 4 multirec)?<br>
4) Anybody has links with good info on input groups (apart from<br>
the documentation)?<br>
<br>
<br>
Thank you in advance!!<br>
<font color="#888888"><br>
--<br>
David Lister<br>
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</font></blockquote></div><br><br><br>Not that I have a lot of experience with DVB-S setups and DiSEq, but it
seems to me that on the adapter (or settopbox) "side" of the switch can
only be a single tuner. It seems to me there are only two solutions:<br>
<br>
1) Remove the switch and run two coax cables from each tuner to each LNB (1 to 1 connections)<br>
2) Make the LNBs twin LNBs, add a second switch and have both tuners connect through a switch to these twin LNBs<br>
<br>
The first one would be the least expensive, but the second gives more
flexibility in recordings. Your current setup can maybe be used if you
use inputgroups:<br>
<br>
<a href="http://www.mythtv.org/docs/mythtv-HOWTO-12.html#ss12.6">http://www.mythtv.org/docs/mythtv-HOWTO-12.html#ss12.6</a><br>
<br>
Regards,<br>
<br>
<br>
Jelte<br>