There are multiple variables here you need to consider... The headset socket is 4-contact to support headphones with built-in microphone. So if you plug in a 4-contact jack then you are more likely (not guaranteed) to get a clean connection (4 contacts touching 4 separate contacts).
However a "clean" connection is not helpful if you've plugged in the wrong type of headset. See there are different types (too many): https://technosyndicate.files.wordpress.com/2012/12/122312_0549_common35mm11.png http://www.cablechick.com.au/blog/understanding-trrs-and-audio-jacks/ So an imperfect connection is pretty common. And an imperfect connection might touch the laptop's mic contact to something else. In fact if you get a pair of Bose Quiet Comfort QC25 then you have a choice between buying one with Apple support or Samsung/Android support (although some stores will only stock Apple). One doesn't work in the other but they both appear to be identical 4-contact 3.5mm jacks. Yes indeed this can be fixed in software to silence or reduce noise from the mic line. But remember it's a hardware problem as well as a software problem. You should try both hardware and software solutions. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1654448 Title: XPS 13 9360, Realtek ALC3246, Headphone audio hiss Status in alsa-driver package in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Status in pulseaudio package in Ubuntu: Confirmed Bug description: Pertaining to 16.04 on a dell XPS 13 9360 ii alsa-base 1.0.25+dfsg-0ubuntu5 Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. When headphones are plugged in, there is a clearly audible hiss (white noise). This is present as soon as the headphones are plugged in, whether 'headphones' or 'headset' are selected from the pop-up box. Using alsamixer to debug the issue reveals that it is related to "Headphone Mic Boost" - the default setting is: dB gain 0.00, 0.00. If this is changed to: 10.00, 10.00 (one notch up) the hiss disappears. 20.00, 20.00 cause a louder hiss and 30.00, 30.00 causes an even louder hiss with high frequency audio artifacts. When the headphones are removed and plugged back in the Headphone Mic Boost setting returns to dB gain 0 and the problem also returns. This (problem and workaround) has been reported in the wild: https://news.ycombinator.com/item?id=13050843 and https://www.reddit.com/r/Dell/comments/4j1zz4/headphones_have_static_noise_with_ubuntu_1604_on/ for example To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1654448/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
