I've run a s-video cord from my Dell laptop to a television. Then started computer. TV on input. Nothing obvious happens. I press "Fn F8" and the screen flashes, but stays blank.
I connected the TV to my dell desktop computer. It worked fine.
My Dell D800 has a Standard VGA Graphics adapter. Can that push out a video signal to a television?
Hoarding photos on your phone?
Those picture are hogging memory and could be slowing down your phone.