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alsa-mixer: Add support for the Headphone,1 element

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This is seen at least on HP EliteDesk 800 DM and HP EliteDesk 800 SFF.

This is used by the analog-output-headphones-2 path, but all other paths
on the same sink need to handle the element too. The existing
configuration is inconsistent between files regarding whether headphone
outputs should be muted or not when not using them. I chose to be
consistent within files, which means that Headphone,1 handling is
inconsistent between files in the same way that the existing Headphone
and Headphone2 handling is. (My opinion is that unused paths should be
always muted, but I didn't want to do that policy change in this patch.)

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/272>
This commit is contained in:
Tanu Kaskinen 2020-12-26 22:29:06 +02:00 • committed by Arun Raghavan
parent 1804c9de1d
commit 72b6d24adb
6 changed files with 30 additions and 0 deletions
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7
src/modules/alsa/mixer/paths/analog-output-headphones.conf
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@ -93,6 +93,13 @@ volume = merge
override-map.1 = all
override-map.2 = all-left,all-right
; This path is intended to control the first headphones, not
; the second headphones. But it should not hurt if we leave the second
; headphone jack enabled nonetheless.
[Element Headphone,1]
switch = mute
volume = zero
[Element Headset]
required-any = any
switch = mute