[linux-dvb] Re: Pinnacle PCTV HD Pro Stick

Markus Rechberger mrechberger at gmail.com
Thu Dec 7 16:53:57 CET 2006


Hi,

On 12/7/06, Erik Meitner <erik at wanderings.us> wrote:
> Erik Meitner wrote:
> > Chris Lawrence wrote:
> >
> >> Erik Meitner wrote:
> >>
> >>> I gave the tuner a poke:
> >>>
> >>> $ scan -n -o zap -p
> >>>
> /usr/share/doc/dvb-utils/examples/scan/atsc/us-ATSC-center-frequencies-8VSB
> >>>
> >>> scanning
> >>>
> /usr/share/doc/dvb-utils/examples/scan/atsc/us-ATSC-center-frequencies-8VSB
> >>>
> >>> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> >>>
> >>>>>> tune to: 57028615:8VSB
> >>>>>>
> >>> WARNING: filter timeout pid 0x0000
> >>> WARNING: filter timeout pid 0x1ffb
> >>>
> >>>>>> tune to: 63028615:8VSB
> >>>>>>
> >>> WARNING: >>> tuning failed!!!
> >>>
> >>>>>> tune to: 63028615:8VSB (tuning failed)
> >>>>>>
> >>> WARNING: >>> tuning failed!!!
> >>>
> >>>>>> tune to: 69028615:8VSB
> >>>>>>
> >>> WARNING: >>> tuning failed!!!
> >>>
> >>>>>> tune to: 69028615:8VSB (tuning failed)
> >>>>>>
> >>> WARNING: >>> tuning failed!!!
> >>>
> >>>>>> tune to: 79028615:8VSB
> >>>>>>
> >>> ERROR: interrupted by SIGINT, dumping partial result...
> >>> dumping lists (0 services)
> >>> Done.
> >>>
> >> In my experience, you will get the "tuning failed" messages on
> >> frequencies that don't have an ATSC channel on them... it takes 5
> >> minutes or so to scan through all of the ATSC frequencies.  You can
> >> watch the signal lock progress by running femon in a separate shell.
> >>
> >> The 'filter timeout' messages are probably the result of a too-weak
> >> signal.  Using a real UHF antenna will probably help.  (I use the
> >> Zenith "Silver Sensor" indoors at home, and while it's not all that
> >> portable it'll grab a signal much better than the "car aerial"
> >> VHF-style omnidirectional antenna included with the Pro Stick.)
> >>
> >> If you're feeling ambitious, you can save some time and comment out
> >> the digital frequencies that aren't used in your area within
> >>
> /usr/share/doc/dvb-utils/examples/scan/atsc/us-ATSC-center-frequencies-8VSB.
> >>
> >>  I believe they are in order from channel 2-69.  You'll also need to
> >> know the real channel numbers of the digital streams (you can get
> >> these by looking up the stations in Wikipedia).  Granted, that's a lot
> >> of work to save five minutes... but if you're trying to orient an
> >> antenna it might be worth the trouble :)
> >>
> >> The digital tuner now works pretty well for me, although I get a lot
> >> of annoying audio pops and video hiccups when using xine -V xv or xine
> >> -V xvmc (they go away with xine -V xshm, but that pegs the CPU at 90%
> >> on my old-school 1.87GHz Pentium M laptop).
> >>
> >>
> > Ah, right. I was able to scan and find all of the local stations after
> > all. :)
> > Still no video output though. When I run xine and choose a channel it
> > stays in a "buffering" state and never displays video.  The same is true
> > with mplayer.
> >
> > One more thing: when the device is configured in DTV mode, it generates
> > a bit more heat than it did when I tested it under Windows. I certainly
> > gets warmer than it does in analog mode. The antenna connector seems to
> > be sinking most of the heat, but there is  still more than I think there
> > should be. This, along with the problems mentioned above may be an
> > indication that something is not quite right with the driver.(?)
> >
> > Markus: need anything else? I suspect you'll want logs with reg_debug
> > set to 2 while running xine?
> >
>
> Mplayer and Xine both work now though I didn't really change anything
> other than audio settings.  Things are working as best as they can with
> a 1.7Ghz Pentium M (Thinkpad t42). The heat seems to be much less now
> too. It is very stable with the exception of running Zapping and MythTV.
> But those may just be configuration problems. So I'd say I'm at the same
> level of functionality as Chris Lawrence.
>

interesting because it didn't work for Michael Krufky either, suddenly
that changed .. maybe the moon or something like that caused the
problems.

So next step will be teletext/VBI, to cut off that greenish bar ontop
of the video.

cheers,
Markus



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