The build-in webcam (the 270 degrees turnable on top of the LCD) is not (yet) supported under linux. It seems to run on the GL860 chipset, not to be mistaken for the GL860A (which is supported). The GL860 has not yet linux drivers.

 lsusb shows the following line for this device:

 Bus 001 Device 003: ID 05e3:0503 Genesys Logic, Inc.

See the following links for more details:

• Vender Genesys Logic link to chipset of WebCam
  
• Link to comment about unsupported linux driver
• Ubuntu forum discussion about this webcam