It does have the vga socket, but when it is plugged in, I get 3-4 screen blinks from the laptop screen, but the external monitor only stays "on" being the power light, about 5 seconds. That is not long enough to try to move the input signal on the monitor.
I think that the one id:2, is the laptop screen?
sudo lshw -C video
[sudo] password for xxxx
*-display
description: VGA compatible controller
product: 3rd Gen Core processor Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
logical name: /dev/fb0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom fb
configuration: depth=32 driver=i915 latency=0 resolution=1366,768
resources: irq:30 memory:f0000000-f03fffff memory:e0000000-efffffff ioport:5000(size=64) memory:c0000-dffff