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Pinnacle PCTV40i analogue noise with recent kernel versions

> Not sure whether we already had this:
> Please ensure that you are using the new drivers from linuxtv.org.
> The code supporting your version of the tuner is quite new and using
> the old version causes an i2c failure. The only way out of this is to
> power cycle the machine. This also means that you *must* ensure that
> the system does not load old modules in between.

Okay, but that makes remote debuggig impossible :-(

> Not sure what you mean. To my experience, you should  *not* merge the
> mercurial tre into the kernel source. just unpack it and do a make and
> - optionally - a make install.

In the debian packages the modules direcory did not contain the links to
the original source build directory which are needed for the v4l build.
Took me some time to figure out why "make" in the v4l directory failed...

> Aha. You mean the small dots? This is "cross luma" distortion. It occurs
> when the decoder expects s-video but receives CVBS at the Y input. This
> also occurs with not properly shielded s-video cables due to cross talk.
> This is more common than you might expect.
> 
> If you are interested in the technical background:
> The small dots in the coloured areas are the modulated colour carrier. At
> PAL, this is a quadrature modulated 4.43MHZ carrier. In CVBS mode, a notch
> filter suppresses this at the cost of some bandwidth. This filter is off
> in S-video mode since there are separate inputs for the Y and C signals.

Well, the card is only equipped with a S-Video connector to the outside.
 I think a saw only a pin for connecting composite directly to the
board. I'm using the adaptor included in the package for connecting my
composite signal to the S-Video port. I'm not sure about the exact
specification of that adaptor.

Do I understand you right that the filter can be enabled on the card and
would probably solve my problem?

Best regards,
Karsten

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