I got a strange problem with my integrated webcam on my thinkpad t420. When I start the machine, cheese shows a moving picture. Everything is working as expected. When I later start the wire messenger the webcam stops working. When I then again fire cheese up, there isn't a moving picture within cheese too. Same problem with jami messenger. That's why I think it is not a problem with a specific messenger app. Also I have o shut down the pc and start it up again to get cheese working properly again.
Can anybody help me solve this problem?