U2518D, Laptop, Windows 7, cannot select 1440p?

• Current Monitor Model Name: Dell U2518D

• Issue: Cannot pick 1440p resolution, showing up as Generic PnP in device monitor.

I just recently got a Dell U2518D and have connected it to my work laptop via HDMI. The maximum resolution available to me is 2048x1080, but I believe that my graphics card can support higher than that. I am running windows 7, 64 bit.

My work laptop has an AMD 6380G (old, yes), but I did some research and it looks like that card can support 1440p. I am also noticing that the device shows up in device manager as a Generic PnP, I'm not sure if that is causing the issue but I can't update it.

I have tried the following:

• Update display drivers for the AMD 6380G.
• Update Firmware on dell display.

My questions:

• Am I limited because of the HDMI cable? The laptop does not have a displayport or mini-displayport.
• Is there a way to get the monitor recognized as the actual monitor and not Generic PnP? I couldn't find drivers to install on the Dell website or Windows Update.