<div class="gmail_quote">On Mon, May 7, 2012 at 1:34 PM, Gary Buhrmaster <span dir="ltr"><<a href="mailto:gary.buhrmaster@gmail.com" target="_blank">gary.buhrmaster@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On Mon, May 7, 2012 at 5:11 PM, lists.md301 <<a href="mailto:lists.md301@gmail.com">lists.md301@gmail.com</a>> wrote:<br>
> ... Perhaps it would be a good idea<br>
<div class="im">> to make mention of input groups with<br>
> virtual tuners in the documentation,<br>
> but I'm unsure myself where the best<br>
> place for this would be (or I would do<br>
> it myself). Or if it is already, and I've<br>
> missed it, feel free to ignore<br>
> this suggestion.<br>
<br>
</div>The business logic of the MythTV database<br>
is not exclusively in the database, and as<br>
such, I do not know there is any better<br>
recommendation other than "there be dragons<br>
there" along with the ever present "No user<br>
serviceable parts inside, do not open". Any<br>
such documentation as to how not to break<br>
the database for particular point fixes would<br>
imply that editing the database is a possible<br>
option (and then you get more breakage as<br>
others try to edit the database)(*).<br></blockquote></div><br>I think you missed my point, but I can see why you might have, considering I was talking about poking around the database again. I only uncovered my real problem because I noticed a table in the database, specifically the one for input groups.<br>
<br>I just remotely logged into my master backend and ran mythtv-setup so I can be precise. For example, on the second screen of the input connections for my first HDHR QAM tuner, I have input group 1 defined as "HDHOMERUN_10328892-0". It never occurred to me that defining virtual tuners would cause an input group to be defined in mythtv-setup (only obvious in hindsight). So reviewing my setup configuration, I would not have noticed that there was no input group defined, which I believe was the source of my problem. How it got deleted I cannot say, but certainly was my doing in some way.<br>
<br>I'm merely suggesting that whatever appropriate place in the setup/documentation that covers virtual tuners, it could be mentioned that an input group will be automatically created to handle it's functionality, and perhaps also a warning that it should not be monkeyed with. But the catch is, there isn't really any setup explanation of virtual tuners at all that I could find, which is why I'm not simply adding something to the documentation myself. None of the links on the 'mythtv-setup' wiki page at present include that level of detail. I hope this doesn't sound like a "feature request without a patch." I'm just bringing attention to something that caused me problems, hoping others may learn from it. (First 2 things I always do when I have an issue is search the wiki and the gossamer mailing list archive.) It seems to me a user could break things, without ever hacking the database, if they somehow wrongly messed with the input group settings in mythtv-setup.<br>