Hi and thanks for reporting and working on this bug! First thing to know is that different machines have different PCI SSIDs. For information about this, look at the "PCI SSID" section of https://wiki.ubuntu.com/Audio/SameHardware
If you have PCI SSID 1028:05fe or 1028:060a, the fix for the noise issue is upstream. You can test the daily drivers by following the instructions here: https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS The original poster has PCI SSID 1028:05e3. If you have another PCI SSID, the first step is to post your alsa-info in this bug. See https://wiki.ubuntu.com/Audio/AlsaInfo - that will give us more information about your hardware, including your PCI SSID. You can also file a new bug using the "ubuntu-bug audio" command and give a notice in this bug with a link to a new bug. Hopefully I or some other audio developer will have time to look at it - but unfortunately I can't promise any quick response right now. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1252733 Title: [XPS 12-9Q33, Realtek ALC668, Black Headphone Out, Left] Background noise or low volume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1252733/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
