The actual model name should be HP ENVY 4 Sleekbook, instead of Pavilion dm4
Not sure if this difference would cause this issue
Audio jack for Envy 4 Sleekbook
http://regmedia.co.uk/2012/05/09/hp_2.jpg
Audio jack for Pavilion
http://www.alsa-
project.org/db/?f=bb7348be66ad118763145e1ff90cf3b3763500da
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https://bugs.launchpad.net/bugs/1134069
Title:
[HP Pavilion dm4, IDT
node 0x0b does not support input, it is unlikely that they are reversed
you have to run
hda-jack-sense-test -a
when you plugged and unplugged
both HP and Mic are not plugged
control.16 {
iface CARD
name 'Headphone Jack'
value false
Simple mixer control 'Mic Jack Mode',0
Capabilities: enum
Items: 'Mic In' 'Line In'
Item0: 'Line In'
Mic Jack was changed to line in Jack by Mic Jack mode control
** Changed in: alsa-driver (Ubuntu)
Status: Confirmed = Incomplete
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ports:
analog-input-microphone-internal: Internal Microphone (priority
8900, available: no)
properties:
analog-input-microphone: Microphone (priority 8700, available:
yes)
properties:
http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths
/analog-input-mic-line.conf
you have to ask pulseaudio Dev how to add the Mic Jack mode
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alernative is to force the driver not creating the Mic Jack mode control
which Mic Jack can be used as Mic only by hint
add_jack_modes=false
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/Documentation/sound/alsa/HD-Audio.txt
- add_jack_modes (bool): add xxx Jack Mode enum
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