I've just installed Ubuntu 11.10 and I've found that my webcam output is in black & white. In ubuntu 11.04 everything worked fine, now I've tested my webcam with skype and cheese: neither is working properly! Any hint?
This is the output of lsusb:
Bus 002 Device 004: ID 0ac8:301b Z-Star Microelectronics Corp. ZC0301 Webcam
and here is an image captured from cheese (misplaced colour channels?)