I was using skype when the computer automatically suspended/hibernated due to the battery condition. but when right after I switch on the computer and use skype all I get is a black screen from my webcam, the other party can't see a thing. I'm using ubuntu 13.04 64 bit version. Can you help me out, I installed cheese and it too gives me the black screen. thanks.
Since I cannot found a error or a fix for the problem, I tried switching off the lap by long-press power key and turn on again. Well, surprisingly it worked. :)