** Also affects: pulseaudio (Ubuntu Quantal)
Importance: Undecided
Status: New
** Changed in: pulseaudio (Ubuntu Quantal)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1020471
Title:
"Front Headphone Jack" ALSA kcontrol name not picked up by PulseAudio
Status in “pulseaudio” package in Ubuntu:
Fix Released
Status in “pulseaudio” source package in Precise:
Fix Committed
Status in “pulseaudio” source package in Quantal:
Fix Released
Bug description:
[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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