Ubuntu
linux package

  1. Bug #1413446
  2. Comment #49

Comment 49 for bug 1413446

Revision history for this message
Mario Limonciello (superm1) wrote : Re: Audio broken on 2015 XPS 13 (9343) in I2S mode in Ubuntu 14.10/15.04

@all:
This was caused by a BIOS error in BIOS A01 that put the sound in an undefined mode that wasn't really I2S and wasn't really HDA. This has been fixed by BIOS A02 ( or later ).

There was an _REV patch that was proposed but not merged upstream. If that (or something similar to it) does get merged upstream, then with BIOS A02+ the audio will operate in I2S mode. There are still a handful of open issues in I2S mode that can be discussed and sorted out if we come to that.

@Gabriel,
You should file another bug on your model and manufacturer. This is specific to the BIOS and embedded controller implementation in the Dell XPS 13.