Created attachment 613619 [details]
Screenshot showing pavucontrol vs GNOME Sound panel when external jack is
unplugged

This is an interesting one, current Factory with kernel
3.16.4-1.g7a8842b-default (and before that also with
kernel-default-3.17.1-1.2.g5c4d099 I believe).

Sounds on this Lenovo T430s notebook works just fine.

Except when I plug in speakers or a headset, instead of switching off
the internal speakers and activating that external audio -- silence.

The GNOME Sound panel provides no way to address this.

pavucontrol, however shows "Headphones (unplugged)", and when I select
that as Output Device, everything works as it used to (with 13.1, 13.2
and Factory until a few days ago).


14: PCI 1b.0: 0403 Audio device                                 
  [Created at pci.328]
  Unique ID: u1Nb.0TDI6CRLz81
  SysFS ID: /devices/pci0000:00/0000:00:1b.0
  SysFS BusID: 0000:00:1b.0
  Hardware Class: sound
  Model: "Intel 7 Series/C210 Series Chipset Family High Definition Audio
Controller"
  Vendor: pci 0x8086 "Intel Corporation"
  Device: pci 0x1e20 "7 Series/C210 Series Chipset Family High Definition Audio
Controller"
  SubVendor: pci 0x17aa "Lenovo"
  SubDevice: pci 0x21fb 
  Revision: 0x04
  Driver: "snd_hda_intel"
  Driver Modules: "snd_hda_intel"
  Memory Range: 0xf2530000-0xf2533fff (rw,non-prefetchable)
  IRQ: 46 (1867 events)
  Module Alias: "pci:v00008086d00001E20sv000017AAsd000021FBbc04sc03i00"
  Driver Info #0:
    Driver Status: snd_hda_intel is active
    Driver Activation Cmd: "modprobe snd_hda_intel"
  Config Status: cfg=yes, avail=yes, need=no, active=unknown