I just bought a brand new Dell Vostro 3700 laptop and I am trying to connect my HDMI cable to my 56 inch LG tv. When I plug my hdmi cable into my laptop, the screen starts to flash back and forth to black and then sporadically to the desktop screen. It only goes back to normal after I unplug the HDMi cable from the laptop or when I shut the tv off.
This also happened on a previous Dell Inspiron also, same type of problem when it just flashes and doesn't give me option to transfer to tv. I am wondering what the solution for it is. Do I have to resize the laptop's resolution before hand or plug the HDMI cable into the system before I turn the computer on?