The result of my experiments using that testing kernel was: the headset
volume up/down button worked, but only when a manual keyboard volume
up/down stroke preceded. I speculate that this has got to do with some
auto-disabling of the internal laptop port after some time (probable,
because a very slight hissing sound when no sound is playing on system
stops after ~30sec of such a "no sound" on Windows too and then the same
required manual keyboard up/down stroke is required before the jack gets
"re-enabled" (I guess?) and receiving headset up/down volume controls
successfully). However, you may know better of such stuff.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1894338
Title:
[Dell Inspiron 7570][Samsung Earphones Tuned by AKG] Volume control
buttons don't work
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