Since Linux Kernel 4.8 the sound card is initialized in I2S instead of the old HDA mode. However, in Ubuntu versions of the 4.8 kernel there is some config change that makes the sound card still initialize in HDA. (Fedora and Arch initialize in I2S, which works great for my XPS 13 (9343) dual-booting with Windows)
Ubuntu 16.10 using the 4.8 kernel -- initializes the sound card in HDA
Fedora 25 using the 4.8 kernel -- initializes the sound card in I2S.
How would I do this? Which config option would I need to change?
Are there still issues with I2S in Ubuntu that's preventing the switch from HDA to I2S?