I'm using Lucid, with this camera:
Bus 002 Device 002: ID 0ac8:307b Z-Star Microelectronics Corp. USB 1.1
Webcam
getting the huffman messages:
libv4lconvert: Error decompressing JPEG: unknown huffman code:
libv4lconvert: Error decompressing JPEG: unknown huffman code:
Also affects me.
I have HP PB 4720s laptop with 05c8:0403 Cheng Uei Precision Industry Co., Ltd
(Foxlink) webcam.
And the cam is totally not usable because every 15-20 seconds video freezes
forever (until I restart it).
I have only this:
libv4l2: error dequeuing buf: No such device
--
You
I can confirm I still see the following errors in the Maverick
development branch.
libv4lconvert: Error decompressing JPEG: unknown huffman code:
libv4lconvert: Error decompressing JPEG: unknown huffman code:
...
libv4lconvert: Error decompressing JPEG: unknown huffman code:
Hi arky,
If you could also please test the latest upstream kernel available that would
be great. It will allow additional upstream developers to examine the issue.
Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the
upstream kernel, please remove the
I am able to confirm that this issue is still occurring in latest
release of Ubuntu Maverick Beta.
--
libv4lconvert: Error decompressing JPEG: unknown huffman code:
https://bugs.launchpad.net/bugs/502866
You received this bug notification because you are a member of Ubuntu
Bugs, which
I'm not getting the Huffman code errors, just the fill_nbit ones.
Otherwise, the symptoms are like those above. It starts out as a green
screen while the errors start printing. The top few rows of pixels
appear and seem to get updated. Eventually, I get the test screen
image.
** Attachment
I'm not getting the Huffman code errors, just the fill_nbit ones.
Otherwise, the symptoms are like those above. It starts out as a green
screen while the errors start printing. The top few rows of pixels
appear and seem to get updated. Eventually, I get the test screen
image.
** Attachment
Those errors are supposed to have been fixed in the latest gspca driver.
as per [ https://bugzilla.gnome.org/show_bug.cgi?id=603219#c48 ]
Not a bug in cheese
** Bug watch added: GNOME Bug Tracker #603219
https://bugzilla.gnome.org/show_bug.cgi?id=603219
** Changed in: cheese (Ubuntu)
If you are still having the bug in the latest kernels , kindly re-open
the bug and execute the following command, as it will automatically
gather debugging information, in a terminal:
apport-collect 502866
** Package changed: cheese (Ubuntu) = linux (Ubuntu)
** Changed in: linux (Ubuntu)
Thank you for taking the time to report this bug and helping to make
Ubuntu better. Please execute the following command, as it will
automatically gather debugging information, in a terminal:
apport-collect 502866
Remember to select the first option when prompted with a dialogue , this
starts
I poked around with this, and tried to install the mercurial version of
uvcvideo failed at that and then reinstalled my kernel.
Once I reinstalled my kernel, cheese became usable. I still get a few
huffman code errors here and there but not enough make cheese unusable.
Rather weird.
--
I am using a logitech webcam c200 with ubuntu 9.04. I see these huffman
code errors and visible artifacts on screen. Part or all of the screen
will flash in different colors like arky's screenshot.
--
libv4lconvert: Error decompressing JPEG: unknown huffman code:
** Summary changed:
- ibv4lconvert: Error decompressing JPEG: unknown huffman code:
+ libv4lconvert: Error decompressing JPEG: unknown huffman code:
--
libv4lconvert: Error decompressing JPEG: unknown huffman code:
https://bugs.launchpad.net/bugs/502866
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