[mythtv-users] HDHR losses network connectivity (was LiveTV issues (root caused to cable signals))

[MonkeyPet]

On Fri, Sep 7, 2012 at 11:41 AM, Eric Smith <erictsmith at gmail.com> wrote:

> On Tue, Sep 4, 2012 at 9:45 PM, Monkey Pet <monkeypet at gmail.com> wrote:
> > After debugging my HDHR Prime recording instabilities, I finally found
> the
> > bug behind all my hdhomerun prime woes. I am hoping this post will help
> the
> > others.  The symptom is bad recordings with the error describe in this
> > thread, jumpy recordings, glitchy recordings, LiveTV definately doesn't
> work
> > at all.
> >
> > It is http://code.mythtv.org/trac/ticket/10414#comment:25 and looks
> like the
> > HDHR network gets into some weird state and loses network connectivity.
>  The
> > workaround is to continuously ping the HDHR.  With the pinging the HDHR
> > recordings complete fine as reported in the bug.  The thought is that
> this
> > is a HDHomeRun Prime issue.  I am running Fedora 17 with mythtv 0.26
> (Master
> > Head).  However, ubuntu 12.04 folks reported it as well.  This happens
> with
> > a switch in between the HDHR and/or directly connect to the NIC on the
> > backend server.
> >
> > [fa at mythtv ~]$ uname -a
> > Linux mythtv 3.5.2-3.fc17.i686 #1 SMP Tue Aug 21 19:48:20 UTC 2012 i686
> i686
> > i386 GNU/Linux
> >
> > [@mythtv libhdhomerun]$ ./hdhomerun_config 1313E021 get /sys/version
> > 20120405
> > [@mythtv libhdhomerun]$ ./hdhomerun_config 1313E021 get /sys/features
> > channelmap: us-cable us-hrc us-irc kr-cable
> > modulation: qam256 qam64 oob1544 oob2048 oob3088
> > auto-modulation: auto auto6c qam
> > [@mythtv libhdhomerun]$ ./hdhomerun_config 1313E021 get /sys/hwmodel
> > HDHR3-CC
> > [@mythtv libhdhomerun]$ ./hdhomerun_config 1313E021 get /sys/model
> > hdhomerun3_cablecard
>
> Just wanted to say thanks.  I've been chasing this issue since I
> upgraded to f17 a couple months ago and haven't had any luck.  I
>

I tried to get the word out about this bug because I suspect that many
people would blame mythtv for the bug.  However, since I started pinging
the HDHR over the last week, I haven't lost a recording yet and LiveTV
works again!


> posted about it a while ago "Missing chunks of recordings" but didn't
> have enough data to do any real troubleshooting.  I'm watching your
> silicondust ticket for a resolution but am hoping the ping trick makes
> things stable for the time being.
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