I'm using fedora 15 on my HP G42 laptop, I didn't install any particular packages for access web camera. Does the default OS support access web camera or Do I need to install any software package for that?
Fedora should support your web camera out of the box.
To verify that your camera is working, you could try executing the following command in a terminal
A window should pop up with your webcam stream.
If you don't have mplayer installed, you can install it by running the following command:
There's also a more user-friendly webcam application called Cheese located in Applications -> Sound and Video -> Cheese
If you don't have already have Cheese, you can install it by executing the following command in a terminal.