[pulseaudio-discuss] [PATCH] Alsa: Correct port availability with multiple jacks

[Raymond Yau]

> My personal use-case is Dock headphone jack vs. built-in headphone jack,
> but in principle the same could happen with Front headphone jack vs
> headphone jack (dunno if those can exist in practise).
>

There are two cases which headphone jack won't mute the other headphone
jack when they are at same location
1) dual headphone notebook (e.g. Dell XPS series)

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda?id=8af3aeb498197f6fdf5acc913ffe8a392cb921c9

2) notebook with headset jack, headphone jack  (e.g. Dell Alienware 18)

The other cases which  have three ports at three different locations

1) dock speaker mute internal speaker (e.g. Asus TX300)

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda?id=7bba2157c5d3ee7f076adfdfa96eec274801da8f

2) those business desktop have hp, lineout and internal speaker

3) Internal speaker and external subwoofer (e.g. Asus N series notebook and
sonic master subwoofer)

4) Notebook with headphone and lineout at same location Clevo 180hmx

Driver allow user to select automute speaker only or lineout+speaker when
headphone is plugged

some case need pin fixup

1) some desktop have lineout at front audio panel and lineouts at rear
panel

2) some desktop with 7.1+2 hda codec and 3 audio jacks at rear panel need
hp to support 7.1
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