My HDMI cable does not play audio and plays only video?

I have been through several posts on this and tried everything suggested, nothing works.

I have a Lenovo G505s laptop and LG tv. The cable is new and works well with my Dell laptop.

I have upgraded the HDMI drivers, ensured the device shows up in sound settings under control panel. Its even my default device when I connect the HDMI cable, but no sound.

When i try to play an MP3 song through media player, it says the audio device is not available or is being used by another device at the moment.

Guest

My name is Sandeep and I work for the Social Media and Community Team at Dell.
Please check the default audio settings from the control panel in the Lenovo system. We suggest you to try changing the default audio devices and also check the mode of input on the television and let us know if this helped!

Thanks,
Sandeep
Social Media and Community Professional
Order Status: http://dell.to/...to/1fgKSTr
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Dell Inc

Thanks for the response Sandeep. I have changed the default audio settings and that said LG tv. So it does recognise that its connected to the tv.

Probably I should mention that my Dell is on Windows 7 and Lenovo is on Windows 8.1 with AMD graphics processor.

There are two entries under Display adapters in Device manager - AMD Radeon HD 8500M series and AMD HD Radeon HD 8550G + 8500M Dual Graphics

Sudhindra