[mythtv-users] HD Hiomerun works better in HDHomeRun viewer than MythTV

R. G. Newbury newbury at mandamus.org
Wed Jan 2 22:36:04 UTC 2019

On 2018-12-31 03:07 PM, Don Brett wrote:
> On 12/31/2018 2:50 PM, James Abernathy wrote:
>> On 12/31/18 2:36 PM, Don Brett wrote:
>>> On 12/30/2018 9:36 PM, Stephen Worthington wrote:
>>>> On Sun, 30 Dec 2018 15:32:07 -0500, you wrote:
>>>>> On 12/30/2018 2:40 PM, Don Brett wrote:
>>>>>> I have a roof mounted antenna and my house is within 3-5 miles of all
>>>>>> the local channels.  Signal strengths are very good. Shows are always
>>>>>> pixelated in MythTV, some worse than others, but it happens on pretty
>>>>>> much every show.   On a whim, I tried the HDHomeRun viewer, which is
>>>>>> supplied by Silicon Dust, everything looks perfect.  Is there a 
>>>>>> mythtv
>>>>>> update or setting I should be looking at?  Any suggestions on how to
>>>>>> diagnose?
>>>>>> Don
>>>> Is it a recording problem or a playback problem?  Find one of the
>>>> recordings that gives pixellation in MythTV and use the I key to show
>>>> the "Recorded File", then find that file in your storage groups.  Then
>>>> use other player software to play the file (eg VLC, mplayer). If
>>>> possible, use the HDHomerun software to play the file.  Is it
>>>> pixellated when played by other software?
>>>> What version of MythTV are you running?  What is your video hardware?
>>>> What drivers are you using?  What settings are you using for playback
>>>> in mythfrontend?  What sort of recordings are you making - are they
>>>> MPEG2 video, H.264, ...?  Are these DVB-T, ATSC, or something else?
>>>> When the pixellation happens, do you also get audio blips around the
>>>> same time?  Is the pixellation just occasional, or frequent? Is it
>>>> regular (eg every 15 seconds)?  Does it vary in how long it lasts for
>>>> before normal picture is restored?
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>>> HDHomeRun doesn't allow playback unless I buy their DVR license, so I 
>>> can't try it that way. 
>> The HDHR view that you download from their site will work for OTA 
>> channels without cost. You only pay if you sign up for their DVR or 
>> Premium service
> Yes, that's where I started, using the  HDHR viewer to see live OTA 
> channels.  It looks great in their viewer, but not in MythTv.  As a 
> test, I was trying to playback a MythTV recorded show (from file) in the 
> HDHR viewer, but can't without the license.

Since you are using a roof mounted antenna and are VERY close, I would 
suspect that you might be over-loading the receiver section of the HDHR. 
I haave a large antenna and I am over 30 miles from some of the 
transmitters and it works well. So the sensitivity is high!

You might try an attenuator, or just a couple of splitters in a chain, 
to chop down the signal.


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