No sound through the TV speakers after connecting the dv7 - 1247 cl via hdmi

I have connected my laptop to my harman kardon receiver via hdmi, which is connected to my HDTV.  The video shows big... looks great. But no sound is coming through the TV speakers.  I went to the audio options and an hdmi output chosen, but still no sound. Any ideas?

Ty

Hello

Take the receiver the most out of the image and connect the laptop directly to the TV. Does your sound work now?  What SW you use for audio/video playback? MediaSmart? Try this also - disconnect the cable - release MediaSmart - plug the cable and then try again.

Press Fn + F4 to switch to HDMI only. This action refreshes the screen, transfers to the screen from the laptop to the external display and audio now comes from the HDTV sound system.

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