JFTR, it seems that upstream has agreed to revert the _REV change for 4.1, and develop a quirk system for 4.2 that would enable us to stay on HDA mode for as many kernels as we like:
http://mailman.alsa-project.org/pipermail/alsa- devel/2015-May/091958.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1413446 Title: Audio broken on 2015 XPS 13 (9343) in I2S mode in Ubuntu 14.10/15.04 To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1413446/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs