hey there....
so i have this acer travelmate 4750 laptop and it's webcam just stopped working(win 7), i reinstalled win 7 and then 8 and it didn't work...( i used it only by installing cyberlink programs and it used my webcam) but it didn't work anymore....

so i'm here in ubuntu, still no webcam

i did lsusb and lspci and still, no sign of camera or webcam or anything like that...i have tried cheese and some other webcam application's and still, no sign of it working ...
my bluetooth, network and card readers are all broadcam models...

what can i do?