[mythtv-users] HVR-3000 DVB-S tuning problems

Mark Guz mark at guz.org.uk
Wed Oct 17 12:59:39 UTC 2007


On 10/15/07, Mark Guz <mark at guz.org.uk> wrote:
>
>
>
> On 10/14/07, Mark Guz <mark at guz.org.uk> wrote:
> >
> > Hi there,
> >
> > I've just installed a shiny new Hauppauge HVR-3000 card in my myth box.
> > After some driver compiling and head scratching the hardware now works
> > perfectly, and using dvbstream i can lock on to channels on Astra 2D
> > 28.2E, particularly BBC1 Scotland, ITV Grampian etc, however within
> > Mythv (i used both 0.20 and 0.21cvs) i can only pick up channels from
> > Astra 2A/B and the signal strength is only reported as 5%, plus the picture
> > suffers from peep/squeek and breakup.
> >
> > With dvbstream and the original digibox, all transponders are available
> > and all channels are clear and suffer no break up.
> >
> > I am in the Netherlands and have a dish pointed at Astra 28.2E and the
> > LNB is a UNIVERSAL variety.
> >
> > I have seen some talk of mythtv not working too well with dvb-s and
> > other talk of it working just fine.
> >
> > I don't think the hvr-3000 is at fault as there are no problems using
> > dvbstream and the dish/lnb is definately ok, so the only thing left is myth
> > itself.
> >
> > Is there a known problem, am I doing something wrong? I set the diseqc
> > to universal LNB and i don't see anywhere else i can configure options.
> >
> > Any suggestions?
> >
> > Regards
> >
> > Mark Guz
> >
>
> More info:
>
> The LNB is set to universal (LNB LOF Low 9750, High, 10600, Switch 11700)
>
> I have removed myth completely and downloaded and compiled the latest SVN,
> which made no difference.
>
> Interestingly I can't find the channels on any of the transponders listed
> as Astra 2D  28.2E but can on 2A/B using scandvb or mythtv but i can lock
> directly onto channels using dvbstream.
>
> I had a look at the LNB settings on my sky digibox and they are set to
> 9.57, 10.6 and 22kHz tone=ON. I don't find anywhere in mythtv to set this
> 22kHz tone but if i switch it off on my digibox, i loose a lot of channels.
> So i have a feeling the myth isn't setting the LNB up properly, but given
> that I knew ZERO about LNBs a week ago, I'm prepared to be proven wrong..
> > knew ZERO about LNBs a week ago, I'm prepared to be proven wrong..
> >
> > Any help, tips, pointers links would be be greatly appreciated.
>
> Which drivers are you using for the HVR3000?



v4l-dvb-20070818 patched for multiple simultaenous frontends.

I tried to use the stoth drivers but i could only access the DVB-T port on
those, the DVB-S port wasn't available.

I'm using mythdora-4.0 with kernel  2.6.22.9-61.fc6

You can pick up channels from all transponders?

Is there a patch for the stoth drivers to allow them to load both frontends?

I've got one of those cards working fine with DVB-S on Mythtv, using Astra
> 28.2E (from the UK).  I'm using Steven Toth's drivers from
> http://linuxtv.org/hg/~stoth/hvr3000/<http://linuxtv.org/hg/%7Estoth/hvr3000/>
>
> I did have some trouble getting any channels at all in Myth, but I can't
> remember why now !  It was about 10 months ago that I got it all working.
>
> I'm pretty sure that my setup also reports about 5% signal strength in
> Myth - this is just a driver issue - it doesn't report signal strength
> properly - doesn't make any difference to me.


so that's a red herring then. I thought it might be.

I don't remember having to setup anything to do with a 22Khz tone in myth.
>

good news...


Can you lock onto the channels using szap ?  If you can do that, I think
> it should work in Myth.


some channels, but not all.

Maybe I should try again with the stoth drivers...

Thanks for responding..

Regards

Mark Guz



Robert.
> Any help, tips, pointers links would be be greatly appreciated.
>
> TIA
>
> Mark Guz
>
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