On 2018/12/31 下午9:46, Tanu Kaskinen wrote:
On Fri, 2018-12-21 at 11:05 +0800, Hui Wang wrote:
We have 2 HP desktop models which have one front headphone Jack and
one front headset Jack, in the Linux kernel, these two jacks are
named "Front Headphone Front Jack" and "Front Headphone Surround
Jack", now adding them into the pathes conf file.
How do the kcontrols map to physical connectors? Is there only one
physical connector or two? How do different kinds of devices
(headphones, headsets, stand-alone mics) change the state of the two
kcontrols?
There are 2 physical connectors/jacks, one is the pure headphone jack,
the other is the headset jack (headphone + mic).
For the headphone jack, the kcontrols are: 'Front Headphone Surround
Jack' and 'Headphone Playback Volume' index 1
For the headset jack, the kcontrols are: 'Front Headphone Front Jack',
'Headphone Playback Volume' index 0, 'Mic Jack' and 'Mic Boost Volume'
If we plug a headphone in either of the two jacks, the 'Surround Jack'
or 'Front Jack' will be true. If we plug a headset in the headset jack,
the 'Front Jack' and 'Mic Jack' will be true.
This is not the Dell machine, most Dell machines can't detect mic of
headset, so we add headset-mic, headphone-mic for them. This HP machine
can detect mic of headset jack, and it doesn't support stand-alone mics too.
I think at least the headset-mic path configuration in your patch is
incorrect, but I don't know how it should be configured before knowing
how the two kcontrols behave.
After reading your comments above, I think you are right. And I think
I shouldn't touch analog-input-headset-mic.conf in the patch, since this
is a HP machine, and the headset jack of this machine has capability to
detect the mic on the headset and the kcontrols are "Mic Jack" and
"Headphone Front Jack". It is different from the Dell machines.
(A sidenote: it would be awesome to have some documentation that
explains what combinations of headphone/headset/mic jacks exist in the
wild and how those combinations map to physical connectors. The details
of the headphone/headset/mic jack detection mess are impossible to
remember.)
It is not easy to fully understand this part, need to study it bit by
bit. :-)
Without this change, if users plug a headset or headphone, the
path of headphone will not be activated, and users can't see
headphones from UI like gnome-control-center.
Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
---
For alsa-info.txt of one of machines, please access:
https://pastebin.ubuntu.com/p/CjCGySMpM5/
.../alsa/mixer/paths/analog-input-headset-mic.conf | 6 ++++++
.../alsa/mixer/paths/analog-output-headphones.conf | 6 ++++++
.../alsa/mixer/paths/analog-output-speaker-always.conf | 8 ++++++++
src/modules/alsa/mixer/paths/analog-output-speaker.conf | 8 ++++++++
4 files changed, 28 insertions(+)
diff --git a/src/modules/alsa/mixer/paths/analog-input-headset-mic.conf b/src/modules/alsa/mixer/paths/analog-input-headset-mic.conf
index 579db6bb7..bc687b6e4 100644
--- a/src/modules/alsa/mixer/paths/analog-input-headset-mic.conf
+++ b/src/modules/alsa/mixer/paths/analog-input-headset-mic.conf
@@ -35,6 +35,12 @@ state.plugged = unknown
[Jack Front Headphone]
state.plugged = unknown
+[Jack Front Headphone Front]
+state.plugged = unknown
+
+[Jack Front Headphone Surround]
+state.plugged = unknown
+
[Jack Headphone Mic]
state.plugged = unknown
diff --git a/src/modules/alsa/mixer/paths/analog-output-headphones.conf b/src/modules/alsa/mixer/paths/analog-output-headphones.conf
index d2147c50f..2d751607c 100644
--- a/src/modules/alsa/mixer/paths/analog-output-headphones.conf
+++ b/src/modules/alsa/mixer/paths/analog-output-headphones.conf
@@ -40,6 +40,12 @@ required-any = any
state.plugged = unknown
state.unplugged = unknown
+[Jack Front Headphone Front]
+required-any = any
+
+[Jack Front Headphone Surround]
+required-any = any
+
[Jack Headphone]
required-any = any
diff --git a/src/modules/alsa/mixer/paths/analog-output-speaker-always.conf b/src/modules/alsa/mixer/paths/analog-output-speaker-always.conf
index 71f356dce..c9374e471 100644
--- a/src/modules/alsa/mixer/paths/analog-output-speaker-always.conf
+++ b/src/modules/alsa/mixer/paths/analog-output-speaker-always.conf
@@ -33,6 +33,14 @@ state.unplugged = unknown
state.plugged = no
state.unplugged = unknown
+[Jack Front Headphone Front]
+state.plugged = no
+state.unplugged = unknown
+
+[Jack Front Headphone Surround]
+state.plugged = no
+state.unplugged = unknown
+
[Jack Line Out]
state.plugged = no
state.unplugged = unknown
diff --git a/src/modules/alsa/mixer/paths/analog-output-speaker.conf b/src/modules/alsa/mixer/paths/analog-output-speaker.conf
index 9f4dac414..536630d0a 100644
--- a/src/modules/alsa/mixer/paths/analog-output-speaker.conf
+++ b/src/modules/alsa/mixer/paths/analog-output-speaker.conf
@@ -36,6 +36,14 @@ state.unplugged = unknown
state.plugged = no
state.unplugged = unknown
+[Jack Front Headphone Front]
+state.plugged = no
+state.unplugged = unknown
+
+[Jack Front Headphone Surround]
+state.plugged = no
+state.unplugged = unknown
+
[Jack Line Out]
state.plugged = no
state.unplugged = unknown
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