I am not on Ubuntu, but actually Arch, and creating the file, with gedit, alsa-base.conf in /etc/modprobe.d/ with the line " options snd- hda-intel mode=mute-led-gpio " worked for my HP Spectre X360 (15-ap012dx) so it seems that this fix works throughout various other distros and HP machines as well.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1705586 Title: Mute key LED does not work on HP ProBook 440 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1705586/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs