http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths/analog-output-lfe-on-mono.conf
; Intended for usage in laptops that have a separate LFE speaker ; connected to the Master mono connector
this meam that it is bug of pulseaudio since this is not a laptop
http:// cgit.freedeskto p.org/pulseaudi o/pulseaudio/ tree/src/ modules/ alsa/mixer/ paths/analog- output- lfe-on- mono.conf
; Intended for usage in laptops that have a separate LFE speaker
; connected to the Master mono connector
this meam that it is bug of pulseaudio since this is not a laptop