To check if the symptoms are actually identical to bug 1413446, there are a few ways to go about it debugging further.
The easiest thing you can do is to grab kernel 4.2 (rc5 or later) which includes this commit: https://github.com/torvalds/linux/commit/ea7d521569a70418aa9f6309a1d1916709818b62 That avoids the behavior of the things changed by this _REV check. You'll probably need to cold boot a few times and might need to mess with mixers to get audio working after this. If that doesn't work properly then that likely means that there are other audio problems that need to debugged and it's not a BIOS issue or not only a BIOS issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1464757 Title: Audio broken on Dell Venue 11 Pro 7140 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1464757/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs