Dual Screen not working *UPDATED*

[InsaneCain]

Hello, first time poster here. I work at USMC and am trying to get a Lenovo T520i to dual screen.
The issue: I cannot get a second display to show up in the display settings at all.

What I have done and/or am working with.

1) The connection is via VGA, I have no alternative method of connection
2) The display settings refuse to show the second monitor or a projector
3) I have swapped out cables and devices in attempt to remedy the issue
4) went into BIOS and changed the display setting to VGA and then the image will show via external monitor and the projector as well. *edit* (but laptop screen is now black)
5) VGA cable drivers are up to date and functioning

I am at a loss as of what to do, I cannot find a solution online at all. I am running low on time and this is my last resort.

Using a windows 7 64bit
system model 4242BT6
4096MB RAM
Dx 11


This laptop has displayed on a projector before, and similar laptops of the same make work fine. I don't know of any recent changes made to it other than what I listed above as it is not mine, and was just given to me to work on and repair.
-----------------------------------------------updated info below for easy reading-------------------------------

1) in display settings clicking "detect" does nothing,
2)adjusting resolution does nothing
3)In standard VGA Graphics Adapter Properties there are no listed conflicting devices
------

1) in display settings clicking "detect" does nothing,
2)adjusting resolution does nothing
3)In standard VGA Graphics Adapter Properties there are no listed conflicting devices

------

Listing all information from dxdiag

Lenovo T520i

(System Tab)

OS: win 7 enterprise 64-bit
BIOS: Default system BIOS
Processor: Intel Core i3-2310M CPU @ 2.10GHz (4 CPUs), ~2.1GHz
Memory: 4096MB RAM
DirectX Ver.: Dx11

(Display Tab)
Name: Standard VGA Graphics Adapter
Manufacturer: (standard display types)
Chip Type: Intel Sandybridge Mobile Graphics Chipset
DAC Type: 8 bit
----
Drivers
Main Driver: vga

 

[InsaneCain]

intel graphics options showing anything unusual?

nothing, I went through and have made sure everything is updated, seemingly there are no errors, i feel like I'm overlooking something simple here.

 

[InsaneCain]

SOLVED:
This is day 3 with this dreaded laptop and they are starting to pile up now, so screw this I just don't care, the individuals who use the computer are going to have to go into BIOS and switch between VGA and LCD to suite whichever they need, sucks for em' but nothing I can do.

 

[13thmonkey]

so the vga port works if changed in bios?

trying using ultramon?
http/www.logicasart.com/2011/03/how-to-enable-or-disable-second-monitor-in-windows-7/