Chris: I'm well aware of the newer BIOS versions. I work at Dell on Project Sputnik. The issue is that the I2S audio mode is not well supported. There is now a quirk in the Linux kernel that sets the ACPI _REV reported to the firmware to 5 only if on certain systems needing to be quirked. (Setting _REV to 2 results in our firmware configuring audio the same way it would be on Windows 8.1 and Windows 10.) It would be wonderful if this quirk did not need to exist in perpetuity, especially since more and more systems will be using I2S audio in the future.
** Tags removed: bios-outdated-a05 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.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: [Dell XPS 13 9343] Audio broken with 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
