Hello:
Basically same story but with some more appreciations.
Raúl Sánchez Siles wrote:
>>> Raúl Sánchez Siles wrote:
>>>
>>>> Hello All:
>>>>
>>>> On skype I had the same problem and is this: I can start my video and
>>>> the
>>>> other end will see it, but after a randon time ranging from little
>>>> seconds to little minutes, the image I sent (and that I'm able to see)
>>>> goes to black unconditionally.
>>>>
>>>> After this, same as before the video was working at this point, but
>>>> stops
>>>> working after some time. Along the video conference skype seems to try
>>>> to reinitialize webcam, it starts working again, but then it goes to
>>>> black again.
>>>>
>> [...]
>
> Now I got to reproduce the problem. I think it's related to
> environmental
> light somehow. I had some trouble to reproduce problem in the mornings
> because I had a lot of natural light, but it was at evening that I was
> trying to use the camera. So to test it out I turned on a lighter lamp.
> This way it was harder to get the problem, and I only got it when I
> covered the camera focus totally, after that, just a black image like the
> one I used to see remained there. The only difference was a small whitish
> point.
>
> After this I think there's some problem in the light/bright regulation
> mechanish. I think next step is starting to look at the code and see where
> some of this regulation happen, any pointer would be appreciated.
>
Now I'm more certain that this is a trouble in the light regulation
mechanism, but I don't know how to get more information from the driver. I
don't know even where the light regulation happens. Is it on driver, on
hardware or in the userspace application by chance (doubtfully this last)?
My most reliable method to reproduce up to know is being on a very soft
light environment, for example: night with a dim indirect light(12W low
consumption lamp). In this situation you will see the image, but not very
well defined using a regular videoconferencing resolution and frame rate.
Now cover the camera focus completely using your hand, the image will
become totally black and, if the light is not clear enough it will remain
in that state unless you reinitialise the video streaming or use a light
enough light so the brightness regulates automatically to a useful value.
Thanks for your patience, and I still appreciate help and/or pointers.
Regards,
--
Raúl Sánchez Siles
----->Proud Debian user<-----
Linux registered user #416098
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