[mythtv-users] pixalated live tv images

[Kevin Johnson]

On Sun, Oct 30, 2016 at 5:06 PM, Kevin Johnson <iitywygms at gmail.com> wrote:

> On Sat, Oct 29, 2016 at 8:13 PM, Peter Bennett <cats22 at comcast.net> wrote:
>
> >
>
> > On 10/29/2016 07:51 PM, Kevin Johnson wrote:
>
> >>
>
> >>
> >>
> >> On Fri, Oct 28, 2016 at 8:21 PM, Peter Bennett <cats22 at comcast.net>
> wrote:
>
> >>>
>
> >>> On 10/28/2016 06:03 PM, Kevin Johnson wrote:
> >>> > Hdhr is connected to a router that goes to the same card.
> >>> >
> >>> I had a problem with an HDHR and a DLINK router. When the HDHR and
> >>> backend were connected to the router, packets were lost every few
> >>> seconds, causing pixellation. I fixed it by using a switch between HDHR
> >>> and backend, and just using the router for the Internet connection. It
> >>> seems that the router was dropping packets.
> >>>
> >>
> >> Ya I am beginning to suspect some sort of hardware issue now.  It
> happens on all frontends and disabling power savings is not solving it.
> >> Just strange that this all started right after I upgraded everything.
> >>
> >> Another thing that has reared its head is starting live tv.  Sometimes
> it continuously stutters.  I have to pause it a few seconds and then all is
> fine.
> >> Usually occurs when I switch from one live channel to another,  And not
> everytime.
> >> Still digging around seeing if I can find others with these issues.
> >>
> >> Oh the joys of upgrading,
> >>
> >>
> >
> >
> > These are notes for how I checked this situation. If you see "n" in
> among the dots then you have packet loss (as in the example below).
> >
> > Check for packet loss
> > Low level test for network packet loss - PRIME:
> >
> > From a shell (on backend when nothing is recording) run:
> > hdhomerun_config FFFFFFFF set /tuner2/vchannel <channel number>
> > hdhomerun_config FFFFFFFF save /tuner2 null
> > Replace "<channel number>" with the channel number for an unprotected
> channel in your area.
> > If you have more than one HDHomeRun unit then replace "FFFFFFFF" with
> the device ID of the desired unit.
> > You should see a series of dots. "n" indicates network packet loss. "t"
> indicates a reception error. "s" is informational.
> > eg
> > ............................................................
> ....................
> > ...................................n........................
> ....................
> > ............................................................
> ...............n....
> > ............................................................
> ....................
> > ...................................n........................
> ....................
> > ............................................................
> ...............n....
> > ............................................................
> ....................
> > ...................................n........................
> ....................
> > ............................................................
> ...............n....
> > ............................................................
> ....................
> > ...................................n........................
> ....................
> > ...........................................................................n...
>
> >
> Thanks for the info.  I ran the above and everything looks great.
> Video statistics --
> 81451 packets received, 0 overflow errors, 0 network errors, 0 transport
> errors, 0 sequence errors
>
>  I also tried a different drive and storage group for live. TV.  No joy.
>
> If anything. It seems like live TV starts to fast.  Much faster than ,27
> did imo.
> If I exit. And start again it is fine
>
>
>
Okay.  This only happens when the live picture resolution is 720p.  Does
not occur on 1080i images.
Driver issue maybe?   Guess I can roll back the nvidia driver.

Im going to use vappi for a while to see if that makes it go away.

> >
> >
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>
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