#9 [1.2.3] wrong init ... picture too dark, wrong color/contr.

[Anonymous]

Hi Nicklas,

thanks for your work on camera driver ... I own ASUS F3Jp-AS017M notebook with this nice little camera ...

my lsusb says : Bus 003 Device 003: ID 05e1:0501 Syntek Semiconductor Co., Ltd

seems to work ok ... no error/warning messages while loading driver ... tried with some parameters (is there a list of available?) ... but all I get is a very bad dark pictures ... I tried with different programs Kopete, camsource, camorama, ... adjust the different sliders, but picture is only chnging a little ...

on windows its working well, wih nice picture :-) how do I help to improve driver? Or what I am doing wrong?

Thanks
Martin

[Nobody/Anonymous]

listing from "lsusb -s 003:003 -v"

[Martin Zi.]

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Hi Nicklas,

sorry .. it was my post, but forgot to login :-(

Here some additional informations ... using wxcam I got following errors ... why is there no gamma control? Does it mean a gamma hardware control?

Thanks
Martin

-------------
mazi1802@notebook1:~> wxcam
Determining video4linux API version...
Using video4linux 2 API
V4L2_CID_BRIGHTNESS is not supported
V4L2_CID_CONTRAST is not supported
V4L2_CID_GAMMA is not supported
V4L2_CID_SATURATION is not supported
Determining pixel format...
Could not determine pixel format
wxcam: v4l2.cpp:288: virtual bool VideoForLinux2::getFrame(char**): Zusicherung »buf.index < n_buffers« nicht erfüllt.
Abgebrochen
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[Jose Manuel Gómez Poveda]

I have observed this exact behaviour with my 05e1:0501 webcam. That problem is also happening with the stkwebcam driver (that was the reason why I have tried this driver).

In Windows, you get very nice imagery, whereas in Linux you get dark and very noisy images.

I wonder if the problem is related to support of some webcam functions not yet developed (gamma, et al), or missing post-processing filters.

I will try to add more information as I find out. If anyone can shed some light on the reason of this low image quality, it would be very much appreciated.