Ok, so I have an Alienware m17x, and I got an HDMI cable to output my video to my HD tv, but the sound doesn't work. I thought HDMI cables were good for sound too? How can I make this work?
well my guess is that alien ware used a video card that does not support sound through HDMI. so you will have to find another way to hook up sound to your T.V.
does it have any kind of audio input jacks for the HDMI connection?
Well with my laptop I have to make sure the TV is on, and on the correct HDMI input before plugging in the HDMI cable to the laptop. If I plug in the cable with the TV off, I get video but no audio. Try that, it may work.