This is something I plan to look into for next release. The microphone mute key is not a standard key. It will not even work under windows without a special driver from Lenovo.
Though let me know what happens if you put acpi_osi=Linux on the command line. ** Changed in: ubuntu Status: New => Incomplete -- thinkpad t400s microphone mute button does not work https://bugs.launchpad.net/bugs/408903 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs