do your notebook have two headphone jacks, mic and line in jacks seem driver blindly assume one of the headphone jack is line out
https://bugzilla.kernel.org/enter_bug.cgi?product=Drivers sound/alsa you have to open bug report since your case are different from the other two bug reports https://bugzilla.kernel.org/show_bug.cgi?id=99681 https://bugzilla.kernel.org/show_bug.cgi?id=99721 Node 0x14 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out Control: name="Headphone Playback Switch", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Control: name="Headphone Jack", index=1, device=0 Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0 Amp-In vals: [0x00 0x00] Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1 Amp-Out vals: [0x80 0x80] Pincap 0x0000003e: IN OUT HP Detect Trigger Pin Default 0x0421101f: [Jack] HP Out at Ext Right Conn = 1/8, Color = Black DefAssociation = 0x1, Sequence = 0xf Pin-ctls: 0xc0: OUT HP Unsolicited: tag=01, enabled=1 Connection: 2 0x0c 0x0d* Node 0x15 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out Control: name="Line Out Playback Switch", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Control: name="Headphone Jack", index=0, device=0 Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0 Amp-In vals: [0x00 0x00] Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1 Amp-Out vals: [0x00 0x00] Pincap 0x0000003e: IN OUT HP Detect Trigger Pin Default 0x042110f0: [Jack] HP Out at Ext Right Conn = 1/8, Color = Black DefAssociation = 0xf, Sequence = 0x0 Pin-ctls: 0x40: OUT Unsolicited: tag=02, enabled=1 Connection: 2 0x0c* 0x0d ** Bug watch added: Linux Kernel Bug Tracker #99681 http://bugzilla.kernel.org/show_bug.cgi?id=99681 ** Bug watch added: Linux Kernel Bug Tracker #99721 http://bugzilla.kernel.org/show_bug.cgi?id=99721 ** Changed in: pulseaudio (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1465167 Title: Low volume with headphones To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1465167/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
