Hi,
This is a development message which shouldn't be reported that often.
It's not the root cause of issues seen with the LifeCam... just
misleading.
I investigated the issue down to the kernel driver with additional
traces. The set frequency operation at 48 khz goes through just fine,
but the
I'm on ubuntu 12.04.5 (Linux daemon 3.13.0-49-generic
#81~precise1-Ubuntu SMP Wed Mar 25 16:32:15 UTC 2015 x86_64 x86_64
x86_64 GNU/Linux) and I can also confirm this bug. Ironic since I
checked uvcvideo for useable webcams before buying it...
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Same problem with Linux 3.16.0-28-lowlatency #38-Ubuntu SMP PREEMPT Fri
Dec 12 18:06:05 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
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https://bugs.launchpad.net/bugs/1033146
Title:
This problem is present in Ubuntu 14.04 and 14.10
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Title:
Microsoft LifeCam HD-3000 with Ubuntu 12.04: webcam light blinks, and
freezes with
This is a problem that affects programs that don't use the video or
Flash.
If I I try to set the webcam as the source of sound in audacity, there
is a delay of a count of 20 or so before it acknowledges that it is set
up, and another long delay of many seconds before anything actually is
Well disabling snd-usb-audio is not really a solution, one needs the
mic to work when on a video call. Also, I have only Adobe flash player
installed in Chrome, and even closing Chrome doesn't help.
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Well, it was a lot of time ago... :-)
I asked to linux-uvc-devel list and Oleksij Rempel suggested me to look the
audio module: he wrote me
This message is not from uvcvideo, it comes from snd-usb-audio: cannot
get freq at ep 0x82. What if you black list the snd-usb-audio, will then
video work?
Well, it was a lot of time ago... :-)
I asked to linux-uvc-devel list and Oleksij Rempel suggested me to look
the audio module: he wrote me
This message is not from uvcvideo, it comes from snd-usb-audio: cannot
get freq at ep 0x82. What if you black list the snd-usb-audio, will
then video work?
@redfox7691: Thanks for the information. Disabling snd-usb-audio works
for me, but I don't have the pepper plugin installed on chromium or
google chrome. Can you share the procedure you used to find this
problem, and hopefully I'll be able to detect the problems on my box?
Thanks
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SOLVED: all my troubles were caused by the latest built-in chrome flash
player (pepper version 11.3.31.232). In chrome:plugins, advanced
settings, I've disabled pepper flash player, leaving only adobe flash
player 11.2.r202. All of troubles are gone.
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Temporary solution: it seems that the problem is caused from snd-usb-audio
module: this module is loaded because LifeCam is an double USB device, audio
and video.
Putting the line blacklist snd-usb-audio into /etc/modprobe.d/blacklist.conf
solves problem with video but stops every other usb
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: guvcview (Ubuntu)
Status: New = Confirmed
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Title:
Just tested 3.4.7 kernel, same results: LifeCam HD-3000 does not work.
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Title:
Microsoft LifeCam HD-3000 with Ubuntu 12.04: webcam light blinks,
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https://bugs.launchpad.net/bugs/1033146
Title:
Microsoft LifeCam HD-3000 with Ubuntu 12.04: webcam light blinks, and
freezes with guvcview
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