driver seem hardcode to use first pin spec->gen.autocfg.hp_pins[0] as hp
of the headset
and imux_pin to determine the selected mic
this mean that if you set the correct pin default of headset mic
(headset mic phantom jack)
you can select internal mic, headset mic or mic jack manually using the
capture source control
static void alc_update_headset_mode(struct hda_codec *codec)
{
struct alc_spec *spec = codec->spec;
hda_nid_t mux_pin = spec->gen.imux_pins[spec->gen.cur_mux[0]];
hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
int new_headset_mode;
if (!snd_hda_jack_detect(codec, hp_pin))
new_headset_mode = ALC_HEADSET_MODE_UNPLUGGED;
else if (mux_pin == spec->headset_mic_pin)
new_headset_mode = ALC_HEADSET_MODE_HEADSET;
else if (mux_pin == spec->headphone_mic_pin)
new_headset_mode = ALC_HEADSET_MODE_MIC;
else
new_headset_mode = ALC_HEADSET_MODE_HEADPHONE;
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1302090
Title:
Dell Alienware 14, Speaker sound output is mono until a headphone jack
is plugged
Status in alsa-driver package in Ubuntu:
Confirmed
Bug description:
Here's the required release and package information:
Description: Ubuntu Trusty Tahr (development branch)
Release: 14.04
Package: linux-image-extra-3.13.0-19-generic
Version: 3.13.0-19.40
When playing audio through speakers on my Alienware 14 2014, the sound
output is in mono until I plug a headphone in any of the two available
headphone jacks (obviously, the auto-mute option must be disabled).
When I do so, the sound starts to play in stereo.
I would love the sound output to be stereo by default and not be
forced to plug anything to achieve that.
Attached is the alsa-info.sh output for my machine.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1302090/+subscriptions
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