looks this patch is missed in recently update[1], as I said in #4, this issue will impact *all* user who updated their kernel. The Microphone mute hotkey will be failed then.
[1] https://paste.ubuntu.com/p/NQMXTMzVbN/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1738153 Title: need backport the new scancode of dell-wmi for Microphone mute hotkey to xenial To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1738153/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs