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

Erik Meitner erik at wanderings.us
Thu Dec 7 16:47:32 CET 2006


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.

Thanks.






More information about the linux-dvb mailing list