[jitsi-dev] webcam recognized by Jitsi but no video in Debian 7.2


#1

Dear All,
I setup Debian 7.2 (32bit) on my Thinkpad Z61m with external webcam (Logitech
C170) to use it with Jitsi (for internal webcam the driver is outdated
and camera is not recognized by Jitsi nb 4902)

The external webcam is instantly recognized in Debian and displays nice
video on Cheese, Skype and testing using "gstreamer-properties".

However in Jitsi using video both preview and videocalls dont work, only
black window, although in Jitsi under tools/options/video/devices the webcam is
selected ("Webcam C170 (dev/video0)" and the webcam LED is on.

I checked online and in the forum for background infos and paste below
the terminal output of lsusb and v4l2 -ctl --all

this command (suggested previously in this forum in Ubuntu 12.04) also did not make video working:
LD_PRELOAD=/usr/lib/i386-linux-gnu/libv4l/v4l2convert.so jitsi

Any suggestions and help is highly welcomed!
kind regards, MS

user@debian:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 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 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
*Bus 001 Device 003: ID 046d:082b Logitech, Inc*.
Bus 001 Device 004: ID 0424:2502 Standard Microsystems Corp.
Bus 002 Device 002: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 004 Device 002: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
Bus 001 Device 006: ID 0a5c:2110 Broadcom Corp. Bluetooth Controller
Bus 001 Device 007: ID 0c45:627b Microdia PC Camera (SN9C201 + OV7660)
user@debian:~$ v4l2-ctl --all
Driver Info (not using libv4l2):
        Driver name : uvcvideo
        Card type : *Webcam C170*
        Bus info : usb-0000:00:1d.7-3
        Driver version: 3.2.51
        Capabilities : 0x04000001
                Video Capture
                Streaming
Format Video Capture:
        Width/Height : 640/480
        Pixel Format : 'YUYV'
        Field : None
        Bytes per Line: 1280
        Size Image : 614400
        Colorspace : SRGB
Crop Capability Video Capture:
        Bounds : Left 0, Top 0, Width 640, Height 480
        Default : Left 0, Top 0, Width 640, Height 480
        Pixel Aspect: 1/1
Video input : 0 (Camera 1: ok)
Streaming Parameters Video Capture:
        Capabilities : timeperframe
        Frames per second: 30.000 (30/1)
        Read buffers : 0
user@debian:~$

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