Well, the camera works well with luvcview. It doesn't report any error.

With regard to the test in a network, I will try later when I will be
connected.

Thanks.



On Fri, 2011-10-21 at 23:36 +0100, Edwin Aponte wrote:
> libv4l2 is giving having problems with a Microsoft LifeCam NX-6000
> webcam (045e:00f8). I have to run skype as below to get the webcam
> working well for a moment, though an error is generated, until the
> system freezes completely after some minutes and even SysRq doesn't
> work.
> 
> env LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype 
> libv4l2: error converting / decoding frame data: v4l-convert: error
> parsing
> JPEG header: Not a JPG file ?
> 
> Sometimes, I get the same error with the program webcam:
> --------------------------
> ~> webcam 
> reading config file: /home/edwinh/.webcamrc
> video4linux webcam v1.5 - (c) 1998-2002 Gerd Knorr
> grabber config:
>   size 320x240 [none]
>   input (null), norm (null), jpeg quality 75
>   rotate=0, top=0, left=0, bottom=240, right=320
> libv4l2: error converting / decoding frame data: v4l-convert: error
> parsing
> JPEG header: Not a JPG file ?
> 
> 
> v4l2: read: Input/output error
> capturing image failed
> -------------------------
> 
> and some times this other error:
> 
> -------------------------
> ~> webcam
> reading config file: /home/edwinh/.webcamrc
> video4linux webcam v1.5 - (c) 1998-2002 Gerd Knorr
> grabber config:
>   size 320x240 [none]
>   input (null), norm (null), jpeg quality 75
>   rotate=0, top=0, left=0, bottom=240, right=320
> libv4lconvert: Error decompressing JPEG: fill_nbits error: need 1 more
> bits
> -------------------------
> 
> I have attached some information based on this thread
> http://lists.berlios.de/pipermail/linux-uvc-devel/2008-November/004265.html
> that seems to be a similar case of my problem.
> I set the trace level to 255:
> 
> # echo 255 > /sys/module/uvcvideo/parameters/trace
> 
> and I record a frame using:
> ~> luvcview -f mjpg -c
> 
> and after that I saved the output of dmesg.
> 
> Thanks.


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