Ubuntu :: /dev/video0 Disappears When Using Motion Deamon?
Jan 29, 2011
I am trying to get my system up and running with motion (motion detection software).
After a reboot I have the video device /dev/video0
But then when I start the daemon
Code:
sudo /etc/init.d/motion start
is says [ OK ]
but now the devide /dev/video0 is no longer there and motion won't start up.
Code:
Failed to open video device /dev/video0: No such file or directory
The only way to get the video0 device back is rebooting.
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Jan 21, 2011
I have a RHEL 5 server linux 64 bit ,How to check the configuration of sshd I just was able to check the sshd service and restarted it but i don't know how to check its configuration
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Dec 10, 2010
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Oct 14, 2010
My webcam is detected under lsusb, but no /dev/video0 shows up. How do I get one?
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Jun 15, 2010
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Mar 10, 2010
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Jun 23, 2010
I am getting avahi daemon failed message at startup and after that the screen keep flickering but no login screen appears. I have read somewhere at the Internet that the cause is full usage of /tmp. Further they advised to delete /tmp/X0-lock. I am using fedora9. Please tell me: 1. If deleting /tmp/X0-lock will be safe? 2. To do this, how can I access the command line when system is not starting up ?
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Jul 23, 2010
I downloaded camE and camorama in hope of controling my webcam's framerate for skype because right now it's 24-30 which gives me dark video. But if I lower the frame rate to something like 10, the video magically brightens. camE doesn't do anything..like it turns on my webcam and does some ftp..fails..turns of my webcam ..back to normal. Camorama can't connect to my webcame. Cheese, guvideo are successfully able to conect to my webcam and play around with it.What I want to do is edit my /dev/video0 or some file from where I can fix the framerate for skype.
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Jul 7, 2011
I have a 'Gadget Geek VHS to DVD maker' USB device that takes analogue video in (composite) and plugs into the computer via USB.
Here is the output of lsuss (it's the eMPIA one):
Code:
Now this is essentially as far as I get, DBUS just says the following when I plug it in:
Code:
What I want to be able to do is open the (theoretical) output stream it produces in vlc and record it from there. Then I run into my next issue. There is no video* folder or link or file in my /dev directory and I can't stream video directly from the appropriate 'special file' inside /dev/bus/usb/00*/00*
My machine is ubuntu 10.4 64-bit
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Dec 8, 2009
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Jun 1, 2010
Although my webcam is identified. I cant get my webcam to work. gstreamer-properties complains - Video for Linux 2 (v4l2): Cannot identify device '/dev/video0' when testing. I have installed packages suggested by sticky.
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Jul 17, 2010
I have an Acer Laptop with a built-in Crystal Eye webcamwhich works (tested it with luvcview).The camera is represented by /dev/video0.I would like to read data from this device, but i don't manage to do it.
This code Code: #include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
[code]....
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Jan 25, 2010
I have a TV Card and a webcam connected to my computer. I've noticed that after a restart the TV Card capture device is /dev/video1 (while other times it's /dev/video0). When the device changes I have to update my tvtime.xml, which is a hassle.How can I force the capture device to be /dev/video0 and the webcam to /dev/video1?
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Feb 3, 2010
Seemingly at random when I reboot my PC which I do every now and then, when I get it back up and running it will sometimes have switched my video card from using /dev/video1 to /dev/video0 or vice versa. It's not a huge deal but it is slightly annoying and I would like to understand why it does it and how I can stop it from flip flopping.
Not sure what you need to know in order to answer but I use 9.10, gnome 2.28.1, the video card is a Hauppauge 150 PVR something.
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Dec 31, 2010
Running Lucid - was an LTS upgrade from 8.04.
I have a usb webcam (off brand). When installed, /dev/video0 is properly created and I can access the webcam through cheese as a regular user.
Code:
crw-rw----+ 1 root video 81, 0 2010-12-31 16:00 /dev/video0
The regular user is already a member of the video group, and I have checked all permissions under System->Admin->User/Groups->Advanced.
However, when as this regular user, I go to a website that tries to access my webcam via flash (ie, chatroulette or omegle), it does not detect the cam. (Firefox 3.6.13 with Flash 10)
I've already set the LD_PRELOAD as suggested elsewhere.
HOWEVER, if I LD_PRELOAD and run Firefox as root, all works fine and the flash plugin sees the webcam.
[Code]....
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Oct 3, 2010
I have 3 old video capture cards which I would like to use for CCTV. Each card supports 1 camera. So I would like to have 3 cameras setup in the end and monitor them with zoneminder. When each card is plugged in on it's own, it works fine. Video comes through clearly with xawtv and zoneminder. However as soon as I plug in a 2nd card (with or without a camera connected) the output in xawtv and zoneminder goes haywire. It looks like the 2nd card takes over the first card, resulting in majority of the picture coming from the 2nd card, and some (if any) from the 1st card. When viewing either of the two cards /dev/video0 or /dev/video1 in xawtv the output is identical. I've tried this on a fresh 10.04 Ubuntu install, and on an older MythTV debian computer, the same results. Here are lspci -vv outputs with 2 combinations of cards (same fuzzy output):
[URL]
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Aug 7, 2010
Mencoder has not a support for my webcam.
However "
Quote:
" works flawlessly well.
So option dumpfile in man page is there to help us!
But well the command
Quote:
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How to force mplayer to dump file -tv flow data to file?
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Feb 24, 2011
i can handle basics but once i get into coding it confuses me. i downloaded motion and webcam-server onto my other computer on the local network, but all i really want to do is access a live feed from my main box and be able to record a video if need be, for security purposes (we had a break-in awhile back). after starting motion, it saved a few .jpgs to the tmp folder, then i shut it down and restarted it as a test, now it's not even doing that, i'll post the readout of what it spat out in a minute. how do i (1) disable the .jpg saving feature, (2) enable video recording, (3) run it in the background (as a daemon?) without the terminal window being visible onscreen, and (4) access it on the main box? also, i couldn't seem to edit the motion.conf file even though i'm an administrator.
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Jul 26, 2011
I have installed this but it is command line and i don't know how to quit the thing. Motion is command line. It keeps capturing unless i shutdown the computer. Very frustrating. I also would like help to understand how to configure Motion if someone can fill in the information gaps on this website
http://www.chriswpage.com/2009/05/se...04-and-motion/
I have also tried zoneminder but it does not want to run for some reason. I have gone to the zoneminder forum and asked but i don't seem to get very far. They got me to download a zoneminder/ubuntu live cd. I used that but it wasn't seeing the camera. Whereas on the distro i have right now cheese, kamoso so see it.
I can live stream with Motion within firefox but i need the motion capturing part configured and without something that will quit Motion the app it's a bit useless. Would appreciate some advice as i have been struggling a long time trying to get this security thing happening
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May 8, 2010
I am successfully using Lucid with either motion or cheese and a Logitech web cam. Is there either:
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Jun 9, 2010
I'm having a problem connecting a motion controller through the Ethernet port. Here is what it does If I connect the Ethernet cable from the computer to the controller, the connection is not recognized. If I connect it from the computer to my router, it will connect automatically. If the computer is connected to the router, and I unplug the router and quickly connect the controller, it will automatically recognize it.Also, when I connect the controller with quickly unplugging the router, I can't manually connect it using the wired connection "Auto eth 2". When I click on it, it thinks for a while and then says Wired Network Disconnected.
Is there a way to initialize the Ethernet port automatically to recognize the motion controller, or is there a way to do it using C++ (that is what I'm suing to communicate to the card since it has special libraries) I find this kind of weird. I want to just be able to plug in the controller and be able to use it.
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Jun 12, 2010
I'm trying to setup motion detection software with a view to getting pictures emailed to me.
I've had a look at a package called motion, which seems great, except it takes tens of pictures every second during motion.
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Jan 10, 2010
How do I change the motion.conf to get the program from taking several snapshots? It just keeps running on and on snapping pics. Also, how do I get the program to record video whenever it detects motion?
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May 24, 2010
Is the motion compensation deinterlacer missing in Ubuntu's Version of Mencoder?
mencoder -vf help doesn't show it (I guess this means it's not installed...), although mencoder's man pages do have an mcdeint entry.
I have those versions installed:
Code:
I first tried the Versions shipped with Ubuntu Lucid Lynx, then I installed them from the Medibuntu repositories. Both without any success. Does anyone know, how to enable mcdeint support? Is there a repository or something I could add to my sources?
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Sep 5, 2010
I have a Sony Vaio VGN-SZ740 laptop with ubuntu 10.04. Unfortunately the motion eye webcam in not working. When I type lsusb in the terminal, it gives the following message:
Code:
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Sep 17, 2010
Is there a program for linux that will start recording video from my webcam when it detects motion? If so where can I download it?
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Dec 24, 2010
I installed 8.04 ubuntu on my Dell Inspiron 9400 laptop. I upgraded it to 10.04. My screen now has a terrible wave on it when I scroll up or down.
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Jul 24, 2011
have tried changing the config file to this:target_dir ftp://user:pass@mysite.com:21/public_html/dirbut motion returns errors. want to be able to put mysite.com/dir/stream.flv into a browser and get the stream that would normally show up on my hardrive.I have also tried the wput on_photo_save, but it tells me that I have to many connections from my machines, and I don't want to have to have a frame rate of 2 per minute.
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Feb 7, 2011
When I run motion in terminal it run in the background. How can I see the GUI and setting configuration it?
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Oct 23, 2010
On my Windoze machine, I use Replay Media Catcher 4 which runs silently in the background and captures any videos (FLV, AVI, MPG, WMV, etc) on any websites that I happen to go to, and saves them to a folder on my hard drive. Right now, if I want to save a video that I'm wathing from Ubuntu, I have to go to /temp, guess which file it is, and copy it after it downloads fully but before it finishes playing, otherwise Firefox deletes it from /temp right away. This is a pain.
Yes, there are screen motion capture utilities in the Ubuntu Software Center, but they're just screen scrapers that result in low quality copies without any audio. I want something that will actually capture the video stream and save it as a file. Even if it doesn't save all videos automatically like RMC4, and I have to right click on the video to Save As, that would be better than copying it from /temp at the precise exact moment.
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