My Vga cord is funtional, since I tried it in other laptop. I bought my laptop last month (hp pavillion-m4 1001tx windows 8) and the VGA thingy is good before. But now I can't use it anymore. I just reformat my laptop to see if there's a problem with my settings and still the same. There's no signal from my laptop to 2nd screen even changing the 2nd screen settings. But the HDMI is good. Maybe the first problem is how to detect my BENQ monitor or TV, before it was detected. Thanks!
Can you please post your dxdiag report here?