My Laptop XPS 15 l502x only have HDMI out and mini display port. This monitor have diplay port, dvi and vga.
So I connected my XPS 15 L502x to this U2412M monitor using mini displayport to display port cable (I bought it from an online store in US).
Alternatively mini displayport to dvi cable also can be used, and it easily available in Malaysia)
When connected using displayport it is using built in intel graphic HD3000 for display, instead of using nvidia 540M if a monitor connected using HDMI. Which is good as built in graphic consume less power when not in demand. And when 3d graphic is required it will automatically use 540M.
The display is very clear and crisp. Color looks natural and wiewing angle is excellent.
Sometimes I rotate it when I want to read some e-book and rotating is an easy task.