I am using a HP Pavilion dv7 Notebook PC. I am trying to hook up my 50" Samsung TV as an external display. However when I hot plug the TV via HDMI the edges get cut off. The same happens if I plug in the HDMI cable prior to booting the system. I have tried adjusting the resolution on the TV and in the System Settings-->Displays. There is only one resolution in the display settings of my laptop. Any ideas on how to correct this? I have searched and searched forums and Google with no luck

HP Pavilion dv7 Notebook PC Intel(R) Core(TM) i7-2670QM running Ubuntu 12.04

description: VGA compatible controller
product: 2nd Generation Core Processor Family Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:52 memory:c0000000-c03fffff memory:b0000000-bfffffff ioport:5000(size=64)