With alsa there is a ""Simple mixer control 'Independent HP'" if set to * "Enable", sound is /only/ audible through the built-in speaker * "Disable", sound is /only/ audible through the connected headphone/line-out
as pulseaudio only use device 0 for analog playback, when independent HP is on , HP is only used for alt analog device 2 (auto mute of speaker by headphone is disabled) when independent HP is off, HP is used by analog device 0 if your external speaker is always plugged into line out, do you mean you want the internal speaker only auto muted by headphone but not by line out ? APLAY **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD1884 Analog [AD1884 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 2: AD1884 Alt Analog [AD1884 Alt Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 Node 0x03 [Audio Output] wcaps 0x405: Stereo Amp-Out Control: name="Headphone Playback Volume", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Device: name="AD1884 Alt Analog", type="Audio", device=2 Amp-Out caps: ofs=0x27, nsteps=0x27, stepsize=0x05, mute=0 Amp-Out vals: [0x27 0x27] Converter: stream=0, channel=0 Power states: D0 D3 Power: setting=D0, actual=D0 Node 0x04 [Audio Output] wcaps 0x405: Stereo Amp-Out Control: name="PCM Playback Volume", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Device: name="AD1884 Analog", type="Audio", device=0 Amp-Out caps: ofs=0x27, nsteps=0x27, stepsize=0x05, mute=0 Amp-Out vals: [0x27 0x27] Converter: stream=0, channel=0 Power states: D0 D3 Power: setting=D0, actual=D0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1251127 Title: [HP Compaq Pro 4300 SFF PC, Realtek ID 221, Green Line Out, Rear] Pulseaudio fails to detect card To manage notifications about this bug go to: https://bugs.launchpad.net/pulseaudio/+bug/1251127/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs