Re: Pinnacle PCTV DVB-S2 Stick (461e) - HD Streams with artefacts

[Andy Furniss <adf.lists@gmail.com>]

Rainer Dorsch wrote:
> Hi,
>
> I have a Pinnacle PCTV DVB-S2 Stick (461e) and did connect it to a
> cubox-i running openelec.
>
> The known issues on
>
> http://linuxtv.org/wiki/index.php/Pinnacle_PCTV_DVB-S2_Stick_%28461e%29
>
>  seem to be gone (at least I did not hit them).
>
> Instead there seems to be another (new?) issue, that HD streams have
> artefacts, see
>
> http://forum.kodi.tv/showthread.php?tid=220129
>
> and
>
> https://tvheadend.org/boards/5/topics/19582?r=19584#message-19584
>
> I tried to add that to the wiki, but my registration attempt was
> rejected.
>
> Can somebody with write access to
> http://linuxtv.org/wiki/index.php/Pinnacle_PCTV_DVB-S2_Stick_%28461e%29
> please add the new issue?
>
> Certainly any hint how to solve this issue is welcome.

I added a comment on the tvh forum - will paste here as well in case
anyone is interested -

You could try spinning up you cpu(s) with

nice -19 dd if=/dev/urandom of=/dev/null

If you have multiple cores maybe start more than one.

I have a couple of DVB-T2 PCTV sticks and got some usb/power save/xhci
issues on my h/w.

Above would mostly fix. Rather than do that I found that the issue was
far less if I disabled USB3 in bios to avoid using the xhci driver.

Of course your issue may be totally different - but it's worth a try.

Your symptoms do point to ts packet loss - which I know from my
experience can be at usb level. There are posts on here from the past
where people with PCIE cards also had to do similar.