Re: Leadtek DTV-1000S

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> 2009/11/1 Michael Krufky <mkrufky@xxxxxxxxxxxxxx>:
>> On Sat, Oct 31, 2009 at 6:43 PM, Michael Krufky <mkrufky@xxxxxxxxxxxxxx> wrote:
>>> On Sat, Oct 31, 2009 at 6:08 PM, Michael Obst
>>> <m.obst@xxxxxxxxxxxxxxxxxxxx> wrote:
>>>> Hi,
>>>>    Thanks for fixing this, I can confirm that it now compiles and
>>>> inserts and the remote works, so does the av input to the tvcard
>>>> however the card does not seem to be able to tune any channels, I have
>>>> checked the old driver and that is still able to tune in channels. The
>>>> output from my dmesg is below.
>>>>
>>>> Thanks
>>>> Michael Obst
>>>
>>> Michael,
>>>
>>> This is an interesting problem -- the part of your dmesg that stands
>>> out to me is this:
>>>
>>>> [  502.928544] tuner 0-0060: chip found @ 0xc0 (saa7130[0])
>>>> [  502.960501] tda8290: no gate control were provided!
>>>
>>> That error message was added as a safety measure -- it shouldn't be
>>> possible to ever hit that code path.  Are you running any non-GPL
>>> binary drivers on your system, such as NVIDIA or anything else?
>>>
>>> Let me explain:
>>>
>>> The "no gate control were provided!" message was added by Mauro to the
>>> tda8290 driver, mainly as a check to ensure that we don't call a null
>>> function pointer.  The gate control is actually provided by the
>>> tda8290 driver itself, by either tda8290_i2c_bridge or
>>> tda8295_i2c_bridge, depending on which hardware is present.  In your
>>> case, it's a tda8290.
>>>
>>> The function pointer is filled during the tda829x_attach() function,
>>> before we call the tda829x_find_tuner function, where this error
>>> message is displayed.  The only way for this to have occurred, as far
>>> as I can tell,  is if the probe to detect the tda8290 itself had
>>> failed.
>>>
>>> Have you repeated your test with the same problem each time, or did
>>> this only happen once?
>>>
>>> Can you try again, from a cold reboot?
>>>
>>> Also, I'm just assuming that this failure occurred during a digital
>>> tune -- is that correct?  Does analog television work?
>>>
>>> If the problem is reproducible, can you also show us dmesg during a failed tune?
>>>
>>> I'm very interested in hearing more about this -- please let me know.
>>
>> Oops, on second look, seems that the error occurred during analog
>> bring-up ... does digital tv work?
>>
>> -Mike
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>

On Sat, Oct 31, 2009 at 7:04 PM, Michael Obst
<m.obst@xxxxxxxxxxxxxxxxxxxx> wrote:
> This problem is reproducible and occurs the same from a cold boot or
> inserting saa7134. Analog tv has never worked on this card, I was
> under the impression there was no analog tuner on the card (looking at
> http://www.leadtek.com/eng/tv_tuner/image/digital_tv.pdf). The info
> was simply from doing a modprobe on saa7134. The only lines in the
> dmesg that were different from the old driver was
>
> saa7130[0]/alsa: Leadtek Winfast DTV1000S doesn't support digital audio
>
> So I guess the analog part has always failed
>
> I am using the nvidia driver and a driver for my wireless card, I will
> turn these off and see if I can get a different result.
>
> During tuning for digital tv with the old driver I got
>
> [ 1081.808505] tda18271: performing RF tracking filter calibration
> [ 1086.152006] tda18271: RF tracking filter calibration complete
> [ 1091.020535] hda-intel: IRQ timing workaround is activated for card
> #0. Suggest a bigger bdl_pos_adj.
>
>
> The final line did not appear when I tried to tune using the new version
>
> [ 1225.904503] tda18271: performing RF tracking filter calibration
> [ 1230.272003] tda18271: RF tracking filter calibration complete

Michael,

The policy on this mailing list is to reply BELOW the quoted text.
Please keep this in mind for the future.

I didn't realize the board had a saa7130 chipset -- That explains a
lot.  This means that there actually is no tda8290 on the board.  (the
tda8290 is usually found inside the saa7131 chipset)

You can remove the line, TUNER_PHILIPS_TDA8290 from the card
definition in saa7134-cards.c -- replace it with TUNER_ABSENT.

That shouldn't fix the problem, but it would be interesting to hear if
it changes anything.  I see that communication with the tuner is
working properly...  It's taking 5 seconds to complete the rf tracking
filter calibration in either case, so we know that the line of
communication to the tuner itself isn't a problem.

I think this will be easier if we meet in irc.  Can you meed me in
#linuxtv on irc.freenode.net?

If not, please enable module option debug=1 to tda18271 and send back
full dmesg, unedited, including startup of the device and a tune
attempt.

Also, enable debug=1 for the tda10048 module -- maybe something
changed there.  I just tested this code with my ATSC saa7134 board
that uses the tda18271, and it's working fine, so I doubt it's the
tuner persay, but we should investigate anyway.

-Mike
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