On ThinkPad X1 Carbon Gen 13, after enabled the proposed channel, and installed the latest version of alsa-ucm-conf and 6.14.0-15-generic kernel, the LED of mic and speaker could work as expected on plucky.
u@Thames2-2:~$ apt-cache policy alsa-ucm-conf alsa-ucm-conf: Installed: 1.2.12-1ubuntu1.2 Candidate: 1.2.12-1ubuntu1.2 Version table: 1.2.12-1ubuntu1.3 100 100 http://archive.ubuntu.com/ubuntu plucky-proposed/main amd64 Packages *** 1.2.12-1ubuntu1.2 500 (phased 50%) 500 http://archive.ubuntu.com/ubuntu plucky-updates/main amd64 Packages 100 /var/lib/dpkg/status 1.2.12-1ubuntu1 500 500 http://archive.ubuntu.com/ubuntu plucky/main amd64 Packages u@Thames2-2:~$ sudo apt install alsa-ucm-conf=1.2.12-1ubuntu1.3 Upgrading: alsa-ucm-conf Summary: Upgrading: 1, Installing: 0, Removing: 0, Not Upgrading: 52 Download size: 74.6 kB Freed space: 3,072 B Get:1 http://archive.ubuntu.com/ubuntu plucky-proposed/main amd64 alsa- ucm-conf all 1.2.12-1ubuntu1.3 [74.6 kB] ** Tags removed: verification-needed-plucky ** Tags added: verification-done-plucky -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2100732 Title: [SRU] Add rt713 & rt1318 LED control To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/2100732/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs