The webcam is unusable due to this problem.
Bus 002 Device 014: ID 0ac8:307b Z-Star Microelectronics Corp. USB 1.1
Webcam
$ gst-launch-0.10 autovideosrc !
video/x-raw-yuv,framerate=\(fraction\)30/1,width=640,height=480 !
ffmpegcolorspace ! autovideosink
vert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffec
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000fffb
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000fffd
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
libv4l2: error dequeuing buf: No such device
ERROR: from element
/GstPipeline:pipeline0/GstAutoVideoSrc:autovideosrc0/GstV4l2Src:autovideosrc0-actual-src-v4l:
Failed trying to get video frames from device '/dev/video0'.
Additional debug info:
v4l2src_calls.c(194): gst_v4l2src_grab_frame ():
/GstPipeline:pipeline0/GstAutoVideoSrc:autovideosrc0/GstV4l2Src:autovideosrc0-actual-src-v4l:
Failed after 50 tries. device /dev/video0. system error: No such device
Execution ended after 24358564033 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...
** Also affects: linux
Importance: Undecided
Status: New
--
ibv4lconvert: Error decompressing JPEG: unknown huffman code: 0000ffff
https://bugs.launchpad.net/bugs/502866
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