This may be a kernel driver bug, and a regression from 4.12. See http://www.lattepanda.com/topic-p24689.html?sid=1fa88916eb19dd9d65e0abd3ecbf6210#p24689
This may be a missing piece of platform data in the kernel that would tell it to invert jack detection on this particular board. I will try testing with the functionality added to the kernel in https://github.com/torvalds/linux/commit/4999b0214b05a08b42bbafcb29a0b9c413002d3f which lets you tinker with the platform data at runtime. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1824259 Title: Headphone jack switch sense is inverted: plugging in headphones disables headphone output To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1824259/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
