Using HP Elitebook 8400 G1 (Windows 7 x64 ) , it got build by wrong drivers, means it got imaged with HP G3 drivers, I have installed the right drivers for this laptop but even then I am not able to extend my laptop screen to a monitor (Dell), I have installed a driver for this monitor as well, changed cables, changed monitors, but none of the monitors detects the laptop. I have uninstalled and reinstalled Display drivers as well, so far nothing has worked.
Anything I am missing?
this could actually cause the issue.
I have had instances once I have disable this service, the monitor behaved normally..
Thats if you have this service loaded on your computer..