** Description changed:

- Many desktops have headphone on the front and line outs on the back.
- Sometimes this means that the alsa kcontrol for the  headphone jack is
- labelled "Front Headphone Jack", but the volume controls are only
- "Headphone Playback Volume", i e, without the "Front" prefix.
+ [SRU Justification]
+ Impact: Some hardware have no automatic jack detection for headphone to 
userspace, so when you plug headphones in, your media keys and indicator will 
still control the speaker's volume. This affects several machines currently 
being enabled by the HWE team.
+ 
+ Testcase: Have an affected machine, i e one that has a "Front Headphone
+ Jack" kcontrol (as seen by "amixer contents"), open gnome sound
+ settings, and plug headphones in. If the bug is fixed, the headphone
+ port will now be visible and selected.
+ 
+ Regression potential: If there is a "Front Headphone Jack", but for some
+ reason this is non-functional due to a kernel driver or hardware
+ problem, there is a chance that the headphone port, which was manually
+ selectable, now is always invisible.
+ 
+ 
+ Many desktops have headphone on the front and line outs on the back. 
Sometimes this means that the alsa kcontrol for the  headphone jack is labelled 
"Front Headphone Jack", but the volume controls are only "Headphone Playback 
Volume", i e, without the "Front" prefix.
  
  Consider backporting
  
  
http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/?id=12a53524b3bdbae2dce7c9fd507561633d3beaec
  
http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/?id=47b31ce6ad744de9595eb4d5366d25b40c5d3455
  
  ..to fix it. It would enable jack detection between speakers and
  headphones for these devices.

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https://bugs.launchpad.net/bugs/1020471

Title:
  "Front Headphone Jack" ALSA kcontrol name not picked up by PulseAudio

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