Hi, I'm running latest Arch Linux ( Linux kerenl 3.3+ ) / Ubuntu 12.04 (3.2 +) acpi_listen has no output of mic mute button on Arch Linux , but Ubuntu does. (xev has no output on both Linux system) Where should I start from ? Thanks -- Best Regards, Aaron Lewis - PGP: 0xDFE6C29E ( http://keyserver.veridis.com ) Finger Print: 9482 448F C7C3 896C 1DFE 7DD3 2492 A7D0 DFE6 C29E