I also verified it on another XPS 13 with the same problem and kernel 4.4.0-29-generic fixed it.
@Cruz, I sent the backport patches and I will change the tag. Thanks for reporting the bug and helping test the proposed kernel. ** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1589886 Title: Wireless hotkey fails on Dell XPS 15 9550 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1589886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs