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I have a Dell XPS 13 and I get white noise in my headphones when plugged into the headset jack. I believe the headphones have a 3 pole connector (two black rings separating the plug). If I mute the microphone or reduce the microphone boost in alsamixer the white noise is reduced.
If I plug in an actual headset (it has a microphone) and what I believe is a 4 pole connector (3 separators) it does not create white noise.
Does anyone have any suggestions for how I can remedy this? I'm totally okay with just killing the microphone line completely on the headset jack, the laptop has a built-in microphone and I don't intend to ever connect an actual headset to it, just headphones.
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Another case of poorly designed hardware, I would argue. Several quick fix solutions:
-mute microphone and any microphone gain options (you can use alsactl store and restore for a specific sound cards state, eventually systemds alsa-restore.service or similar)
-buy a 4pin 3,5mm (I assume it is the medium sized one) jack and either rewire you headphones or even better make an adapter
-take a piece of slim insulating tape and insulate the 4th pin (you can compare the two different jacks), it should be on the cable side, however be careful with this, the tape may end up in the socket.
I would write Dell about this, it seems other people are experiencing similar problems. Some suggests a BIOS update as a solution.
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So I finally found a fix. Only took a year or so.
http://xps13-9333.appspot.com/#background_noise
Last edited by tholmes (2014-05-29 21:14:55)
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