HP zbook 15 g2 - sound ( noise) problem

[Jane]

When I use earphones , the sound from the earphones has a noise problem. When I stop sound( e..g put video in mute mode) the noise remains a little longer and then stops. The problem is ONLY when using earphones.

Under Linux it is the same as with Windows 10.

What can it be ? Thanks for help

[caspian]

Re: HP zbook 15 g2 - sound ( noise) problem

connect a desktop speaker to the earphone connector of the laptop. Then check the output sound.
Possibly, the audio processing circuit of the laptop got defective.

[Jane]

Re: HP zbook 15 g2 - sound ( noise) problem

Thanks for your reply. Do you mean a capacitor on the path from audio chip to earphone connector can be a culprit?

[caspian]

Re: HP zbook 15 g2 - sound ( noise) problem

yes, that is possible. But I have not enough experience on audio controller ICs.