I hit this just now.
chose to work around by rrmod uvcvideo and for good measure rm
/lib/modules/*/kernel/drivers/media/video/uvc/uvc*.ko
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Ok, I just updated the title to reflect reality.
As far as I can tell, gstreamer doesn't loop, though the gtk client certainly
hangs (debug log still shows frames being processed).
I figured a fix for the regression by reverting part of an upstream commit:
http://paste.ubuntu.com/926326/
The
** Changed in: gstreamer0.10 (Ubuntu Precise)
Status: Confirmed = Fix Committed
** Changed in: ubiquity (Ubuntu Precise)
Status: Confirmed = Fix Committed
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** Changed in: gstreamer0.10 (Ubuntu Precise)
Status: Fix Committed = Confirmed
** Changed in: ubiquity (Ubuntu Precise)
Status: Fix Committed = Confirmed
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** Changed in: gstreamer0.10 (Ubuntu Precise)
Status: Confirmed = In Progress
** Changed in: ubiquity (Ubuntu Precise)
Status: Confirmed = In Progress
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That same problem is still with latest night builds in ubuntu live 64 and 32
bits.
Indeed seems to be problem with laptops that have build in webcam and freezes
installation on that stage, after entering user and machine name and clicking
next.
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Added a task for ubiquity to make it more robust against webcam issues.
** Also affects: ubiquity (Ubuntu)
Importance: Undecided
Status: New
** Changed in: ubiquity (Ubuntu Precise)
Importance: Undecided = High
** Changed in: ubiquity (Ubuntu Precise)
Assignee: (unassigned) =
Steve, ubiquity uses gstreamer directly, not via cheese. cheese is just
another example of an application that runs into the same problem.
Does anyone have any realistic proposals on how ubiquity might be made
more robust in this specific case? I can't think of anything. It's a
gstreamer bug
(Proposals: without actually removing features, I mean, which is not on
the cards for 12.04.)
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https://bugs.launchpad.net/bugs/966294
Title:
Ubiquity loops
Or maybe, if the screen doesn't load in however many seconds, skip the
picture taking?
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Title:
Ubiquity loops forever from
I think it would be better to remove the camera functionality than to
release with this bug that doesn't allow installing in many systems.
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The latter suggestion would require introducing concurrency here, which
I think would be risky. I would rather we tried to fix the gstreamer
bug.
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: ubiquity (Ubuntu)
Status: New = Confirmed
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I think it is riskier to leave that camera screen there than to remove
it. And we should proceed before feature freeze.
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The Desktop team doesn't have anyone that is going to be able to fix
this, so I suggest you guys fix the installer to work around it.
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I am not in possession of a time machine and thus cannot proceed before
feature freeze. Do you mean final freeze?
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Title:
Yes, that's what I meant, sorry :)
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Title:
Ubiquity loops forever from ubiquity_webcam_play
Status in “gstreamer0.10”
Stéphane will have a look at fixing this properly in gstreamer.
** Changed in: gstreamer0.10 (Ubuntu Precise)
Assignee: Canonical Desktop Team (canonical-desktop-team) = Stéphane
Graber (stgraber)
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Did some extra debugging in webcam.c initially, I tracked down the
hanging call to be:
if (gst_element_set_state (priv-camerabin, GST_STATE_PLAYING) ==
GST_STATE_CHANGE_FAILURE) {
or more specifically gst_element_set_state(priv-camerabin,
GST_STATE_PLAYING)
I also confirmed that it's a
Tracked down to gstreamer for sure this time, downgrading to Oneiric's
stack fixes the problem.
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Title:
Ubiquity loops
root@ubuntu-test64:~# lsof -n | grep gstreamer
lsof: WARNING: can't stat() fuse.gvfs-fuse-daemon file system /home/ubuntu/.gvfs
Output information may be incomplete.
nautilus 1664 ubuntu DEL REG8,1
4203064
Running ubiquity with the following packages downgrade to their Oneiric version
makes it work:
root@ubuntu-test64:~# dpkg -l | grep 0.10.35
gstreamer0.10-plugins-base 0.10.35-1
GStreamer plugins from the base set
gstreamer0.10-x
Post #17: Workaround is working (Samsung netbook NF310 shark):
sudo rm /usr/lib/ubiquity/plugins/ubi-webcam.py
If no solution is found, removing this file from iso will solve this
really anoying bug which is affecting many laptop.
Attached is dmidecode for Samsung NF310 (NP-NF310-A01FR)
And
Attached is lsusb for Samsung NF310 (NP-NF310-A01FR)
For the webcam having issue with this version of gstreamer.
** Attachment added: lsusb_video_NF310.txt
https://bugs.launchpad.net/ubuntu/+source/gstreamer0.10/+bug/966294/+attachment/3012382/+files/lsusb_video_NF310.txt
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For anyone else interested in tracking down this bug as I'm not going to
be around until Tuesday, the current assumption is that something in the
core of gstreamer is causing the regression.
As it only happens on a subset of hardware, the guess would be that it has to
do with the
I rebuilt Oneiric's gstreamer on Precise and can confirm that it still
works. The rebuild was done keeping the multi-arch changes that were
introduced in Precise, so we know for sure that it's 0.10.35 = 0.10.36
that broke it, most likely in the gstreamer0.10 source though not
impossible it's
Bug confirmed on a Samsung NF310 (Shark)
Using ISO 10.04 Beta 2, moved to a USB stick using Ubuntu usb creator
Ubiquity seems to be failing when clicking on Next, after entering 1st user
(admin) informations.
No matter if files copying just started, or if I am waiting all files to be
copied:
This is probably the same issue as Bug #909179
A temporary work around to get the installer to progress is to run the
following command in a terminal before running the installer.
sudo rm /usr/lib/ubiquity/plugins/ubi-webcam.py
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** Changed in: gstreamer0.10 (Ubuntu Precise)
Milestone: None = ubuntu-12.04
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Title:
Ubiquity loops forever from
gema tracked it down to be a problem in gstreamer. Moving it there.
** Package changed: ubiquity (Ubuntu Precise) = gstreamer0.10 (Ubuntu
Precise)
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I think the bug is in either gstreamer or the kernel, because there is a
ioctl call that seems to point to uninitialised byte(s).
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Same behaviour than with ubiquity. The application never comes up and it
eats all the CPU and eventually the system runs out of memory.
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** Changed in: gstreamer0.10 (Ubuntu Precise)
Assignee: Canonical Foundations Team (canonical-foundations) = Canonical
Desktop Team (canonical-desktop-team)
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On Thu, Mar 29, 2012 at 02:46:13PM -, Barry Warsaw wrote:
So, do you think this is a bug with cheese or ubiquity? I have a webcam
on only one machine (an MBP1,1) and running cheese from the command line
on an installed 12.04 seems to work fine.
At its root I'm sure it's a bug with cheese,
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