Comment 10 for bug 1228970

your log only show headphone was plugged in and no mic was plugged

are you plugged the headset during the log ?

   5.172| 0.000) I: [alsa-sink-HDMI 0] alsa-sink.c: Device suspended...
( 5.173| 0.000) D: [pulseaudio] module-udev-detect.c: /dev/snd/controlC0 is accessible: yes
( 5.173| 0.000) D: [pulseaudio] module-udev-detect.c: Resuming all sinks and sources of card alsa_card.pci-0000_00_1b.0.
( 7.525| 2.351) D: [pulseaudio] module-alsa-card.c: Jack 'Front Headphone Jack' is now plugged in
( 7.525| 0.000) D: [pulseaudio] device-port.c: Setting port analog-output-speaker to status no
( 7.525| 0.000) D: [pulseaudio] module-switch-on-port-available.c: finding port analog-output-speaker
( 7.525| 0.000) D: [pulseaudio] device-port.c: Setting port analog-output-headphones to status yes
( 7.526| 0.000) D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
( 7.526| 0.000) D: [pulseaudio] module-switch-on-port-available.c: finding port analog-output-headphones
( 7.526| 0.000) D: [pulseaudio] module-switch-on-port-available.c: Finding best profile
( 7.526| 0.000) D: [pulseaudio] module-switch-on-port-available.c: No suitable profile found
( 11.013| 3.487) D: [pulseaudio] module-alsa-card.c: Jack 'Front Headphone Jack' is now unplugged
( 11.013| 0.000) D: [pulseaudio] device-port.c: Setting port analog-output-speaker to status unknown
( 11.013| 0.000) D: [pulseaudio] device-port.c: Setting port analog-output-headphones to status no