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Thread Starter 
hi there, first time user on the forum so please bear with me.

I have a Marantz n1604 amplifier , I am trying to run from my lap top display port to an hdmi adopter of course but im not getting any sound out of amplifier, only a picture? now ive tried plugging the hdmi cable straight into the tv its self via an hdmi input and all works fine.
please help if can


also as another topic on same amplifier. I have a blu ray player plugged into an hdmi input on my amplifier and my satellite tv box via component but when switching to the blu ray input after watching the satellite I quite often get no audio from the dvd player through the amplifier, I actually have to physically switch of the amp at the wall and turn tv off then all back on again with the amp on the dvd input