Increase resolution on my intel hd graphics 3000

Question

I recently decided to go Ubuntu on my laptop. Everything seems to be working fine but my screen resolution are set to 1366x768 and that's the maximum i can go. I know i can go higher, i have intel hd graphics 3000 card on my dell inspiron n5110 15R laptop. Here's the lshw output.

$ sudo lshw -C video
[sudo] password for techfried: 
  *-display               
       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:57 memory:f6800000-f6bfffff memory:e0000000-efffffff ioport:f000(size=64)

and here's xrandr output.

$ xrandr
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1366x768       60.0*+   40.1  
   1360x768       59.8     60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)

Can anyone help me increase my screen resolution to the max? thanks