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Linux Desktop Hacks
book

Linux Desktop Hacks

by Nicholas Petreley, Jono Bacon
March 2005
Beginner to intermediate content levelBeginner to intermediate
342 pages
15h 55m
English
O'Reilly Media, Inc.
Content preview from Linux Desktop Hacks
Motion Capture and Video Conferencing Fun #64
Chapter 8, Desktop Programs
|
201
HACK
Most webcams are USB-powered, so you need to ensure that your USB sys-
tem is configured correctly
[Hack #93]. When you plug in a camera, it should
load the Video 4 Linux module. Check that it does with this command:
foo@Bar:~$ lsmod
In the output you should see videodev listed. If it is not listed, you should
insert it with
insmod:
foo@bar:~$ insmod videodev
Once Video 4 Linux is loaded, it creates one or more video entries in /dev.
Check this with:
foo@bar:~$ ls -al /dev/video*
When you run this command, you should see at least one entry appear. If this
is not the case, your camera is not working with Linux. You should double-
check your previous work to make sure you did everything necessary.
Using GnomeMeeting
When you first run GnomeMeeting, you are taken through a configuration
druid that helps you set up and configure the program. Included in this
setup routine are some features for ensuring your webcam is working prop-
erly. At the end of this process, you can click the webcam icon and see the
video from your camera in the window.
If you see a corrupted picture when viewing video in GnomeMeeting, the
webcam driver might have some bugs that might require an update to a
newer driver version; this has been a problem with the OV511 chip-based
range of devices. You should check your camera with a range of software
such ...
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Publisher Resources

ISBN: 0596009119Supplemental ContentCatalog PageErrata