[mythtv-users] Live TV broken?

[Jay Foster]

On 12/31/2014 1:43 PM, E James wrote:
> On 31/12/2014 02:20, Chris Gentle wrote:
>> Within the last couple of weeks, my Live TV has started breaking up 
>> and distorting really bad.  I'm not sure exactly when it started but 
>> it has become unwatchable.  I do over-the-air only and have really 
>> good signal strength (90+) coming into my HD Homerun.  I bypassed the 
>> HD Homerun and hooked a TV straight to the antenna to verify that the 
>> signal is good. No artifacts in the picture at all.  Also switched 
>> out the HD Homerun with a spare one but that didn't make any 
>> difference either.
>> There have been no hardware changes in my myth system in months.
>>
>> I did a completely fresh installation of Mythbuntu 14.04.1 today just 
>> to see if that would make a difference but it did not.  The problem 
>> persists even after a reinstall.  I recorded a show, copied the 
>> recording to another machine and played back with mplayer.  The 
>> recording itself is bad.  The artifacts show up in the recorded file 
>> so I think I've narrowed the problem to the recording phase rather 
>> than playback.
>>
>> I'm not sure what to look at next.  Any suggestions?  Any new known 
>> problems with Live TV?
>>
>> Version Info:
>>
>> MythTV v0.27.4-27-g40506c3
>> Mythbuntu 14.04.1
>> nVidia GeForce 210
>> nVidia driver 331.113-0ubuntu0.0.4
>>
>> Thanks.
>>
>> -- 
>> Chris
>>
>>
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
>> http://lists.mythtv.org/mailman/listinfo/mythtv-users
>> http://wiki.mythtv.org/Mailing_List_etiquette
>> MythTV Forums: https://forum.mythtv.org
>>
>
> I have a Shuttle DS47 running Lubuntu 13.10 and MythTV .27 combined 
> BE/FE. The monitor is an LG monitor / tv and MythTV uses 1 HDHomerun 
> to receive the 2 main Freeview multiplexes. I recently discovered that 
> some of the MythTV gui pages seem to generate interference which 
> upsets reception on the BBC multiplex for both the TV and the 
> HDHomerun. More details if requested. I am considering using a 
> frontend on a different PC to eliminate the problem but it seems to 
> require more MySQL expertise than I currently possess.
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://lists.mythtv.org/mailman/listinfo/mythtv-users
> http://wiki.mythtv.org/Mailing_List_etiquette
> MythTV Forums: https://forum.mythtv.org
>
The OP subject says, "LIve TV" is broken.  Is it only live TV or are 
recordings breaking up too?  If both, then I would suspect the HDHR 
power supply.  I have had several go bad.  I could still ping the HDHR 
and sometimes tune channels, but it would drop out while recording.  One 
of the bad ones was so hot that it burned me when I unplugged it.  Lucky 
it didn't start a fire.