[linux-dvb] Technotrend Budget S2-3200 Digital artefacts on HDchannels

Manu Abraham abraham.manu at gmail.com
Wed Jan 28 00:02:22 CET 2009


Alex Betis wrote:
> On Tue, Jan 27, 2009 at 11:27 PM, Manu Abraham <abraham.manu at gmail.com>wrote:
> 
>> Alex Betis wrote:
>>> On Tue, Jan 27, 2009 at 10:14 PM, Manu Abraham <abraham.manu at gmail.com
>>> wrote:
>>>
>>>> Alex Betis wrote:
>>>>>> It won't. All you will manage to do is burn your demodulator, if you
>>>> happen
>>>>>> to
>>>>>> be that lucky one, with that change. At least a few people have burned
>>>>>> demodulators by now, from what i do see.
>>>>>>
>>>>> What are the symptoms of burned demodulator? How can someone know if
>> its
>>>>> still ok?
>>>> The first time i saw it was that the DVB-S2 demod was returning no
>>>> carrier. After some time it was stating timing error for DVB-S as
>>>> well. Finally it all ended up with demodulator I2C ACK failure, and
>>>> eventually a frozen machine after a week (my test boxes run throughout)
>>>>
>>>> Touching the demodulator, i happened to have almost a burned finger.
>>>> I wanted to know whether this was a single case. During the
>>>> development phase, i did mention it to Julian about this, since he
>>>> was the very first person to test for the stb0899 driver. He
>>>> jovially laughed about a burned demodulator and a finger, left his
>>>> machine on after i did some tests on it. Eventually he too had the
>>>> same results. Finally we changed cards.
>>> What frequency did you use to burn it?
>>
>> It was a long time back, don't remember. It has nothing to do with
>> the frequency of the transponder, but just the master clock. You can
>> run it to a maximum of 108Mhz overclocked, 99Mhz to be safe and
>> sufficient.
>>
>>
>>> I didn't see anyone here on the list that reported a hardware failure so
>>> far.
>> May god help you. I didn't know that you knew more than the
>> demodulator manufacturer !
> 
> Please speak for yourself, I never said I know more than a manufacturer.
> I wrote a fact.
> Intel also rate their chips and everybody overclocks them to crazy ratings.
> 
> 
>>
>>
>>> By the way, Igor returned the chip frequency for 27.5 channels to 99MHz
>> and
>>> raised it a bit for higher SR channels, so there is no danger for
>> majority
>>> of the users.
>> Ok, be happy with his change and keep quiet. 135Mhz is out of bounds
>> of the hardware specification. You are on your own. Raising the
>> master clock, doesn't bring you any advantage.
> 
> Did someone overclock you as well?
> Chill out!
> It would be better if you'll be more productive instead of quieting people
> who try to help.
> 
> Again, I'm commenting facts. As I saw from the reports the overclock seems
> to help with the problem.
> 
> 
>> From your statement (and the patch), it is clearly evident that you
>> don't understand head or tail what you are stating or patched the
>> code for:
> 
> So be so kind, and add comments to the code you write so everybody could
> find its head and tail when trying to fix bugs.
> It is clearly evident that you don't really want that someone else will
> understand your code.
> 
> Again, facts are that the patch help and make the device more stable for
> DVB-S channels.
> 
> 
> 
> Oh well, I hate that I had to get so low with my message, but that's that
> happen when someone try to align with your expressions.
> In case you didn't know, you're not alone in the universe, get used to it.

I should be the one who should be kicked for trying to help you.



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