[mythtv-users] HdHomerun QAM channel lock [solved]

[jason maxwell]

I was able to get solid lock, every time on the 2 channels I was
having issues with. Here's how:
I went into the mythconverg mysql db and edited the channel table by
hand. For the 2 channels that wouldnt lock, I simply updated the
values of atsc_major_chan and atsc_minor_chan both to '0'. voila!

I tried this on a hunch, since all references I found online had those
both set to zero, as did the other channels in my lineup. I'm honestly
not sure what those columns refer to, but it works great now.
-J

On 3/15/07, jason maxwell <decepticon at gmail.com> wrote:
> I have an HdHomerun on my network, attached to comcast cable. I built
> myth 20-fixes from SVN branches a couple of weeks ago. Almost all the
> kinks have been worked out, and it's really amazing.
>
> When watching live tv, i have problems tuning 2 specific channels.
> Freq# 561000000 has 2 unencrypted subchannels, which map as 80-1 and 80-3.
> Freq# 567000000 also has 2, mapped as 81-1 and 81-3.
> Of these, 80-3, and 81-3 tune every time without fail. The other 2
> (80-1 and 81-1) will usually not tune, unless i first tune to the
> other subchannel on their mplex.
>
> ie: If I want to watch 80-1, I must first tune to 80-3, then back to
> 80-1. Otherwise I get a message saying that lock was not achieved, and
> that I can press up/down or C, etc.. I have not had this issue when
> using VLC, and the QAM tuner in my TV has no problem getting a lock.
> Because of this problem, I come home to several "file not found"
> errors when trying to play recordings from those 2 channels.
>
> I have tried setting these 2 channels up in mythtv-setup by actual
> frequency/program number, and by their mapped names. Both methods
> work, but only as I have described here. I've searched on this a lot,
> but havnt really found anything. It looks like some similar issues
> have been dealt with before, and remedied with code changes. Does
> anyone know what I can try to get this working more reliably?
>
> Any pointers toward some related reading, or ideas for places to look
> for clues are appreciated. Im not at home right now, but will work on
> generating some verbose logs later. I didnt see anything obvious from
> glancing over them this week tho.
> Thanks,
> -J
>