refer to pulseaudio verbose log , your headphone seem quite normal using hda-emu
> jack 0x1b 1 send: NID=0x1b, VERB=0x709(exec_pin_sense), PARM=0x0 receive: 0x0 send: NID=0x1b, VERB=0xf09(get_pin_sense), PARM=0x0 receive: 0x80000000 send: NID=0x14, VERB=0x707(set_pin_ctl), PARM=0x0 send: NID=0x15, VERB=0x707(set_pin_ctl), PARM=0x0 send: NID=0x16, VERB=0x707(set_pin_ctl), PARM=0x0 send: NID=0x17, VERB=0x707(set_pin_ctl), PARM=0x0 when headphone is plugged , driver set the pin ctls of four line out jacks to zero CTL Notify: Front Headphone Jack:0, mask=1 JACK report Front Headphone, status 1 JACK report Rear Mic, status 0 JACK report Front Mic, status 0 JACK report Line, status 0 JACK report Line Out Front, status 0 JACK report Line Out Surround, status 0 JACK report Line Out CLFE, status 0 JACK report Line Out Side, status 0 driver update headphone jack status and send ctl notify to user space when pulseaudio receive the hctl event, pulseaudio mute the four line out playback switches -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/874535 Title: Volume Slider Jumps, due to rapidly changing hardware jack sense state To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/874535/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
