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

Erik Meitner erik at wanderings.us
Tue Dec 5 02:51:47 CET 2006


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?

Thanks.






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