Applications :: Webcam - Image Sensor HV7131R Is Not Always Identified As Being Detected When Booting
Jul 17, 2010
Using Slackware 13.0. Have a Microdia web cam (60fc) and was (still am) looking for a simple free application to test it. Found a site which identified the drivers, modules, etc. needed so was checking my messages file and noticed that the Image Sensor HV7131R is not always identified as being detected when booting: kernel: usb 1-1.3: HV7131R image sensor detected Is this a problem or what?
I found modules videodev, V4L2, but could not find compat_ioctl32 and it is not listed in the modules loaded. Is this correct? Could not "find" it. I see usbcore listed during booting but does this mean it is a module? or a driver? or what? Also cannot find the an appropriate module that is for either ehci_hcd or uhci_hcd related as both of these appear in the messages. Also I see that the camera is for SN9C105 bridge and know that the "sn9c105" is supposed to be included in "sn9c102" module(?) but the SN9C105 camera notation does not always appear in messages. Is this correct? or (I think) I am confused by the numbering and cases used, i.e. what is a module (loadable?) a bridge and why change cases? Can someone straighten me out? Are all modules loaded listed by lsmod or just the loadable ones and usbcore etc. are "modules" loaded at another time?
I have a webcam ( sn9c120 (0x0C45:0x6130) ) which I don't get to work anymore.
Module sn9c102 is loaded. Plugging in gives me: usb 3-3: new full speed USB device using ohci_hcd and address 2 usb 3-3: New USB device found, idVendor=0c45, idProduct=6130 usb 3-3: New USB device strings: Mfr=0, Product=1, SerialNumber=0 usb 3-3: Product: USB camera
My Ubuntu 10.04 will not detect the inbuilt webcam on my Compaq Presario CQ61 laptop computer. This laptop only runs Ubuntu as I removed Windows when I got it home new from the shop a few years back. Haven't tried to get the webcam working until now. I have downloaded "Cheese" and when I run it I get the message No Device Found.I have also tried gstreamer-properties in a terminal and get the message video for linux 2 (v4l2): Cannot identify device '/dev/video0'
After installing Skype 2.1.0.81-fc10.i586.rpm (skype.com: fedora 10+) I could see and hear my friends, but they only hear me. Cheese: No device found. Terminal (parts):
Code: [root@localhost ~]# ls /dev/video* ls: /dev/video* ...not found [root@localhost ~]# lsmod Module Size Used by
I couldn't use it, but it was still being detected by hardinfo and when I typed up lsusb, it came up in the list of available devices. For some strange reason, Cheese couldn't use it, so I tried using luvcview instead, to find that the path /dev/video0 didn't exist. I changed the name of /dev/video1 to /dev/video0; thereupon, I could use my webcam with luvcview just fine, so I did a test call with Google Talk, and I could see myself fine, only it froze when I moved my screen. I did a second call, and a few seconds in, my image froze again, and my cam isn't being recognized by hardinfo or lsusb now.
Any suggestions? Is my issue hardware originated, or do you think it might have had something to do with the fact that I changed /dev/video0 to video 1?
Also, I'm on Natty Narwhal 11.04.
EDIT: This is what I'm getting when I type "lsusb":
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
My webcam used to be on Bus 005, so might there be a slight chance it's still being recognized?
EDIT 2: After doing "lsusb" several times I found that the webcam can be recognized on certain positions of the screen. Looks like my issue is hardware-related.
I'm using openSUSE 11.1 and i have problems using the USB webcam. First of all i do not know the commands to check whether the device is detected or not. My webcam is iBall c12.0 and is USB video compilant.
The Cheese software says 'no camera found'.
Please inform about what commands to use and what softwares/drivers to use.
I find that once i log into gnome i have to pull out the Logitech C600 web cam and plug it for it to show up in the 'input' tab under sound preferences.
It's a bit of a hassle to do this every time i log on. I tested it in Ubuntu 10.04 and the webcam is properly detected at the boot.
I have spent many time searching for my prob but couldn't solve it. i installed ubuntu 9.10 recently. the problem is that my integrated webcam and microphone are not being detected. i tried cheese, camorama webcam viewer and skype.. its like that webcam drivers are not installed. and i couldn't find any drivers. camorama gives the error: could not connect to video device(/dev/video0) cheese also says No camera found!
reading other threads i found that lsusb comand output might help so here is its output.. code...
I installed Ubuntu 8.04 on a Dell Inspiron 1420 laptop. All went good. But, the webcam was not recognized. I didnt see any packages to activate the Webcam. What should I do now.
How to get image from webcam by linux c or c++ program? I have a netbook which comes with a webcam, however, how to identify it to be which device file in /dev? Is there any bash command to detect this?
I'm running Kubuntu Karmic Koala 9.10. I just got a no-name USB webcam. It works fine under Windows. Under Linux the behavior is odd and a little frustrating. xsane does recognize it, but when I attempt to preview it or scan, I get the message "Failed to start scanner; invalid argument". Under skanlite, I can scan an image but if I attempt a preview, skanlite generates an internal error. The USB code is... Unlike the other USB devices, no name shows up.
I'd like to use this device under Skype, but the Linux version of Skype doesn't provide any way to test whether the device works or not. Windows does provide such a test (via Welcome), and the webcam works correctly there.
I'm install a genius web cam eye 312 in fedora 11. The image is upside down in all the programs. In amsn there is no colors, and image upside down. In skype, chesse full colors very nice, but image upside down. amsn give me this information: v4l2 : usb camera (93a:2622)pac 7311. The command Lsusb give me Bus 005 Device 002: ID 093a:2622 Pixart Imaging, Inc. So I think there is a problem with the driver it self.
I have Asus Eee PC T 101 mt. Running SuSE Linux 11.4, KDE version 4.6.0 (Release 6). The image from integrated webcam is inverted. The image can be upturned to correct orientation by ticking the "Upturned" effect in Webcam (wxCam) application. However, these options are not available in Skype or Google video, or probably in all other services using webcam. Other person in video chat sees my inverted image. Is there a way by which I can correct the situation?
I found drivers for the laptop, both the basic and the webcam. The problem is that image is very dark. On my other OS i don't have this issue. PS: My Laptop is = Asus f5rl
I have a Ubuntu Server 10.04 box, which i have a Microsoft LifeCame VX-500 webcam connected via USB.
i think Ubuntu has detected my webcam
Code: kimse@ajax:/dev$ sudo lsusb Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 045e:074a Microsoft Corp.
I'm writing to ask for help with a quality issue when using my webcam on sites like chatroulette, and even testwebcam. My webcam, albeit not a very expensive webcam, is quite decent quality, the box claims that it is 2.0 megapixels but... I'm not too sure. However-- When using this webcam on flash sites, the quality drops - it seems - from 640 x 480 to a measly 160 x 120. I get a very pixelated image from the webcam, but using it in cheese it works perfectly fine, at 640 x 480.
The webcam also works on windows, and the quality is fine on flash sites. But, I wouldn't want the only reason to be using windows to be chatroulette. Here are some screenshots comparing the qualities, the first being a screenshot of the webcam in use on [URL]... and the second being a screenshot of the webcam in use in cheese. I probably look like a bit of an idiot in both of the pictures, apologies for that.
Just purchased a webcam and it worked immediatelly with kopete. This was in the configuration dialog, a small window showed me moving around in all my gloriousness. Now realise why those horror films show this sort of footage.
Thing is: how to make the image bigger, fill the screen? Is there a program? Don't say rtfm, I don't know enough to do that.
I want develop an application using webcam.I want to capture the video from webcam and i want to dispay the video.can anybody suggest me how to do that thing using C lanuguage
Sometimes my screen-saver crashes, showing a blank screen with "render error detected ..." message.This message is displayed only short time <1s, then login screen appears.Due to short time, I'm not able to read the complete error message on screen. Is there a way to delay the displaying of such errors so I can read it properly?In the /var/log/messages I have found the following: Code: Jul 9 09:22:33 dc7100 kernel: render error detected, EIR:
camorama application giving error "could not connect to video device (dev/video0) check connections".I am using Ubuntu 10.1 and intel webcam CS110. Also the webcam is not working on facebook/meebo live chat applications.
whenever I video chat with someone the image from my webcam is clear but the video from the person on the other end is messed up. It is as if it does not render correctly, it's washed out and it looks like a full image and 2 cut off images, one on the bottom and one the top of the full image. Has anyone else encountered this? The PC has a Radeon 9800 Pro AGP card with the ATI drivers installed. Other video plays fine, ....., dvd, avi and mkvs.
I am looking for a free software that performs image comparison. I would prefer a non-GUI application as I need this to be automated. I am using Redhat Enterprise 3 and 4
what I do I can't seem to be able to USB boot the minimal image of Ubuntu. No matter what program I use (Ubootnetin/Universal USB Installer/Etc) I always get a blank screen when selecting anything from the menu Install/Command-line Install)
I have installed opensuse 11.2 and then installed Kiwi-ltsp (Two network cards installed). Client system is booting from ltsp server using PXE boot method. But in client system full server is loaded. is there any option to configure/create new image with few applications (Openoffice and browser is enough)?
