USB 2.9 Adaoper generates RF noise interference

1

My USB 2.0 Display Adapter generates noise that interferes with the sound carries by audio cables from my computers headpone out signal to an external amplifier. How may I suppress or eliminate that noise?..Thanks

2

Hi Tim,

Thank you for contacting us about your USB display adapter. I’m sorry to hear you are having problems with it.

Are you using a shielded cable for the audio cable? Because the signal is being amplified to a large extent by the amplifier, even very small amount of interference can become a.problem, so it is generally good practice to use a shielded cable for input into an amp.

Could you describe the interference? Is it a hum, a crackling, or some other noise?

Thank you,

David
Plugable Support