The work around in comment #27 fixed my speaker auto-mute problem. (Speakers would play music while headphones were plugged in.) My mute button does not mute the speakers after this work around.
After, installing the LinuxAlsaDriverModule: https://wiki.ubuntu.com/Audio/InstallingLinuxAlsaDriverModules ...my mute button works. (However, mute button will not mute headphones.) Lenovo Thinkpad SL410 model 2842. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/580006 Title: Headphone jack sense missing on Lenovo Thinkpad SL410 and SL510 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
