I would like to say I have plain old Sony earbuds, and the sound is very noticeable without playing any sound what so ever. As previously mentioned, upping the dB gain on the headphone mic boost from 0.00 to 10.00 completely stops the hissing for whatever reason.
Also, the Arch Linux wiki has some related notes regarding TLP and hissing through headphones reported. I've not messed with TLP at all. /etc/default/tlp as referenced in the wiki does not exist on my system. https://wiki.archlinux.org/index.php/Dell_XPS_13_(9360)#Troubleshooting -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1654448 Title: XPS 13 9360, Realtek ALC3246, Headphone audio hiss To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1654448/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
