Realtek told me that in the alc285, the pin 0x1d is for PC beep in, if PC beep in has noise, it will affect speaker or headphone, set the pinctl of 0x1d to 0x0 is helpful to reduce the noise or close the pc peep in passthrough by setting 0x57d7 to Node 0x20 COEF index 0x36.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1805079 Title: click/pop noise in the headphone on several lenovo laptops To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1805079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs