check ur video card settings
I need help :\
you're sol then 
Most likely the cord or the ports.
Probably over-heated, bent, dusted up, etc;
try:
Using the cord on another tv / port
Using another cord on that TV
U
Probably over-heated, bent, dusted up, etc;
try:
Using the cord on another tv / port
Using another cord on that TV
U
I just used the same cord on the same tv but with my xbox. The video came through but now sound. So now im asking is there anyway to change the video output on my computer manually?