http://mailman.alsa-project.org/pipermail/alsa-devel/2010-October/032126.html
the problem of his notebook is no independent mute switch for headphone and speaker and the subwooder has its own mute switch
http:// mailman. alsa-project. org/pipermail/ alsa-devel/ 2010-October/ 032126. html
the problem of his notebook is no independent mute switch for headphone and speaker and the subwooder has its own mute switch