If you connected everything correctly EG: a 3.5mm jack to 2 X RCA plugs,into the TV. then the background noise might be because the volume is too high on the laptop. double click on the Volume control on the task bar and drop the level to half on main and wave volumes.
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I prolly need to get that cable, I have a 3.5mm to 3.5mm cable that i'm currently using...
Tried turning the volume down, the background noise is there, whether the sound is up, or muted. Think it's the cable?
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