[mythtv-users] canceled recording (Recorder Failed) mystery

[Bob Gamble]

Sorry, I'll try to make this as understandable as I can.  I was using your
test script when getting these errors.  I edited it to put H21 on my main
server.  I think
the secondary server may have a tuner in it with different firmware because
it wouldn't work with H21, only H20.  This line repeated many times:

2010-02-27 14:07:26.343 [mpeg2video @ 0x69406c0]Missing picture start code

Then the rest of what I pasted above referring to the excessive channel
retries.  It is so strange how both tuners will have the same behavior.
 They are using the same
usb->serial connectors and same null modem type.  When it works it is a
great thing to see.  But when it fails, it fails miserably and I have a hard
time getting it
to even watch live tv.

When I took the "setup_channel" argument out it did as you said and recorded
the wrong channel on many occasions.  I put the argument back in with the
test script
and changed the box type on the main server.  During the Olympics,  believe
I only had three failures with this setup.

Could both my cards be going bad?  If they are is there some other card you
can recommend?  I don't need an HD tuner card as I understand directv won't
let
me record HD.  I hope to get to a point where this will work again.  I am
sure I had it working like a top at one time before the directv stbs went
out on me.  At
that time I was using centos.  Though I had other issues with the OS, they
weren't related to changing channels.  The kernel I used then didn't include
ivtv built
in so I always had to install the module with an kernel update.  I hope this
isn't the case, but I wonder if mythbuntu's kernel is just buggy with
mythtv.

I will try snagging a small tv I can test with.  I'm pretty sure that won't
be a problem.  So what I'd need to do is plug the tv into the pvr350 and see
what happens
when changing channels?

Thanks very much for your help.
On Mon, Mar 1, 2010 at 5:16 PM, David Gesswein <djg at pdp8online.com> wrote:

> The first failure Canceled recording (Recorder Failed): XXI Winter doesn't
> seem to have any obvious error. I would recommend checking
> /var/log/messages for any errors around the failed recording time and
> dmesg output. I'm unlikely to be able to help with this one.
>
> The second error Excessive channel change retries, commanded 202 got 247
> is the script failing. It commanded the box to switch to 202 but it stayed
> on 247.
>
> Did you test the modified script with box_type H21? That uses a
> different command so may work.
>
> Also at one point you were testing the script without the setup channel.
> Did that always work or did you sometimes get the wrong channel?
>
> If the H21 doesn't fix the problem is their any way you can directly
> hook a TV to your box so you can see what is happening during a failed
> channel change?
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