[mythtv-users] pixalated live tv images

[Kevin Johnson]

On Fri, Oct 28, 2016 at 3:25 PM, Hika van den Hoven <hikavdh at gmail.com>
wrote:

> Hoi Kevin,
>
> Saturday, October 29, 2016, 12:03:06 AM, you wrote:
>
> > On Fri, Oct 28, 2016 at 12:06 AM, Hika van den Hoven <hikavdh at gmail.com>
> wrote:
>
> > Hoi Kevin,
> >
>
> >  Friday, October 28, 2016, 5:04:07 AM, you wrote:
> >
>  >> HI All:
> >
> >
>  >> I have a strange issue.
> >
> >
>  >> While watching live tv, sometimes the dark area of a live picture will
> become pixalated/sparkly.
>  >> This occurs on 3 different frontends with different hardware.
>  >> It occurs with live tv and if I rewind live tv and re-watch the
>  >> same thing, it still occurs at the same place.
>  >> But, if I hit record and watch the recording, the image is fine.?
> >
>  >> Ubuntu 16.04.1
> >
>  >> MythTV Version : v0.28-76-g7f8f168
> >
>  >> NVIDIA-SMI 340.98
> >
>  >> Capture is a hdhomerun using cable card.  Comcast.
> >
>  >> No other issue arises.  Sound is fine, cpu usage is low.
> >
>  >> Anyone else seeing anything like this?
> >
> >  Do you have a Homerun connected over the same networkcard as you use
> >  to connect to the backend?
> >  I haven't seen this, but if the above is the case, try connecting the
> >  homerun through a dedicated networkcard. You have to activate dhcp on
> >  that card.
> >
> >  Tot mails,
> >    Hika                            mailto:hikavdh at gmail.com
>
>
> > Hi:
>
>
> > Hdhr is connected to a router that goes to the same card.
>
>
> > It seems this occurs after the frontends have shut the screen off.
> > Apparently that behavior is a new feature of 16.04 or myth .28
>
>
> > If I power cycle the frontends everything is normal and remains
> > normal until the screen power saver kicks on.  Then the
> > pixel/sparkle thing happens after they wake back up.
> > I am going to prevent the screen from powering off.  Hopefully that
> resolves this issue.
>
>
> > Thank you for the reply.
>
> Please don't top-post!
> You say and I quote "and if I rewind live tv and re-watch the same
> thing, it still occurs at the same place."
>
> This in my opinion means it is something happening on the backend
> while processing or storing the livetv stream! But it could get
> triggered by something on the frontend.
>
> Tot mails,
>   Hika                            mailto:hikavdh at gmail.com
>
> "Zonder hoop kun je niet leven
> Zonder leven is er geen hoop
> Het eeuwige dilemma
> Zeker als je hoop moet vernietigen om te kunnen overleven!"
>
> De lerende Mens
>

Sorry about the top post.  I rarely post here and I forget the rules.

It is a strange issue indeed.  And yes, what you quoted is true.

I recently updated ubuntu and myth at the same time.  So bugs are to be
expected.

I have been using the same hardware and configuration on the backend for
the last 4 or 5 years.  So I hate to start changing things around if it
worked fine in the past.

A reboot of the frontend solves the problem.
Any idea how to stop the frontends from cutting the video off after sitting
idle?

Thank you.



>
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