I'm trying to drive a 2650x1600 monitor through the display port, but get nothing but a blinking power light on the monitor.  The display detection detects a second display, but doesn't show any information.

I came here to see if I could find some troubleshooting information, and see a post that says the maximum resolution is 2650x1440...

That's not what the product description says.  It clearly says 2650x1600.  Which is correct?

I am using displaylink to Dual-DVI, but that's what I use with my other laptop (Precision M4000 docking station) and it works.