I have an LG LCD TV, on which I can't get audio by connecting my device through HDMI, but I get audio by connecting audio cables separately. I don't think that it is a problem of my devices or HDMI cable because I get the audio by connecting same devices on other TV's.

When I connect my Dell Laptop or Sony Blu Ray Player, I don't get the audio by HDMI. But when I connect my Xbox 360, I get the Audio but the sound is inaudible. Whereas when I connect my Set Top Box for Dishtv the sound is perfect.

There is no problem with devices because when I connect same devices through same HDMI cable on other devices, the sound is perfect.

What could be the possible solution?

Is there any problem with TV?

I live in India, to make the answers useful.