what kind of webcam do you have ?
Sounds like it's on low light mode or something. Usually the cameras can properly adjust themselves for bright light. In fact they work better in the sun than in a dim room.
I tried to change the settings of light, contrast and all sorts of stuff, but the screen remains totally white. But you're saying then that it's not really normal what I experience?
No, I've used the crappy little camera on my EEEPC outside and it worked great. The cameras like the extra light, bumps up the framerate and the color balance becomes more natural.
Hmmm that's strange. Maybe I just got a really shitty webcam, but indoor it works great. Guess I just have to live with it or buy an EEEPC