Ok, I've been driving myself crazy over this as its way too hot today.
I have an HP DV8000 with a nvidia 7400GO gpu. I have been trying to use my 32" hdtv with keyboard and mouse as my main rig is currently undergoing modding.
If I just plug in the cable and turn on both the tv and the laptop, the tv is recognized as a screen. GOOD. BUT, the second I click on the nvidia control panel icon, the tv is immediately discarded as a display, and there is absolutely no way to get it recognized as a display without restarting. Assuming I never go near the nvidia control panel, i can surf the internet/etc fine. But the second I try to load up a game, I lose the tv as a display, permanently until next reboot.
All I want to do is use the tv as the primary display, and not have anything display on the laptop screen at all. Its hot, and this is the next most powerful rig I have around atm. I can't get it to work for the life of me. And the thing that frustrates me the most is the 6-7 year old HP pentium M laptop does this all fine, but simply isn't powerful enough to game on.
Anyone know how to make it recognize the tv as the primary display? Nvidia control panel thing wants nothing to do with the hdtv at all.