Replaceing my hp lcd dual lamp monitor with an hp single lamp monitor

Who told you that?

Notebooks/laptops are generall designed to only work with certain components and no amount of tinkering will get them to work with devices not in the basic design. If your on-board video controller doesn't know how to talk to your non-native monitor, there is nothing you can do to re-program that video controller.

I think you are simply out of luck on this one.