@kaihengfeng This is more alsa info, and did you take a look at the previous attached patch.
** Attachment added: "alsa-info.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891100/+attachment/5403090/+files/alsa-info.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891100 Title: hp notebook 15-da0001nk sound mute led not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891100/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
