[pvrusb2] Terratec Grabster AV400 and 2.6.37

[Sven Barth]

On 05.02.2011 18:35, Sven Barth wrote:
> On 05.02.2011 18:24, Sven Barth wrote:
>> On 05.02.2011 17:34, Mike Isely wrote:
>>> On Sat, 5 Feb 2011, Sven Barth wrote:
>>>
>>>> Hi again!
>>>>
>>>> I could pinpoint the source of the problem in the cx25840 module
>>>> (it's volume
>>>> related... something the cx25837 chip on the AV400 does not support),
>>>> so I'll
>>>> report this to the linux-media list.
>>>>
>>>> But now that I've (again) patched the cx25840 module I can use the
>>>> AV400
>>>> without audio problems on my PC. :D
>>>>
>>>
>>>
>>>> As I hope that this regression will be fixed soon, what needs to be
>>>> tested so
>>>> that the AV400 will become a part of the in-kernel version?
>>>> I have used the composite part of the device for months now without any
>>>> problems. I'll need to test S-video, but so far I'm totally satisfied
>>>> with the
>>>> device (it runs better than on Windows).
>>>
>>> Basically I'd like to verify that all the inputs (audio and video
>>> routing configuration) work correctly; if I remember correctly that was
>>> really the part of the port that we weren't sure about. I can't do that
>>> myself because I don't have access to the hardware. You do - I can help
>>> you understand the routing mechanism, and if you can generate a patch
>>> and verify that it all works, then I will pull it into the driver.
>>>
>>
>> I can tell you the following: the default configuration (composite)
>> works without problems (including audio). S-video does not work
>> correctly though: I see the video input, but it's vertically shifted
>> (~halfway with the lower half being visible at the upper half), the
>> picture moves/flickers horizontally and I see only outlines (audio works
>> correctly).
>
> Searching your mail archive for av400 related content I stumpled upon
> this mail from Dave Craig:
> http://www.isely.net/pipermail/pvrusb2/2009-March/002221.html
>
> I changed the routing from
> CX25840_SVIDEO_LUMA3|CX25840_SVIDEO_CHROMA4
> to
> CX25840_SVIDEO_LUMA2|CX25840_SVIDEO_CHROMA4
> and now the picture is stable and centered. The only remaining problem
> is, that it is black and white, but this can also be related to the
> source signal. I'll investigate this further.

Ok, color works. It was a problem of the input signal. I have now simply 
plugged the S-video output of my graphic card into the S-video input of 
the AV400 and I have a colored picture of my monitor inside mplayer :D

Regards,
Sven