[pulseaudio-tickets] [Bug 90972] No sound when plugging in headphones, must unmute and raise Speker+LO to get sound

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90972

--- Comment #21 from Raymond <superquad.vortex2 at gmail.com> ---
(In reply to Martin Erik Werner from comment #20)


as your don't have any dock station, you cannot verify any fix about the dock
line out is correct or not



> 
> (In reply to Raymond from comment #17)
> > the dirty workaround if you need loopback mixing 
> > 
> > http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/
> > mixer/paths/analog-output-headphones.
> > conf?id=aec811798cd883a454b9b5cd82c77831906bbd2d
> > 
> > remove three lines from headphone.conf
> > 
> > since auto mute is performed by driver 
> > 
> > 
> > -[Element Speaker+LO]
> > -switch = off
> > -volume = off
> 
> Doing this stops the Speaker+LO volume from being lowered and muted thus
> headphones have sound when plugged in, but if internal speakers are muted
> before plugging in, it does not unmute Speaker+LO when plugging in.
> 
> I have tested using instead
> 
> [Element Speaker+LO]
> switch = mute
> volume = merge
> 
> Which seems to make it work and behave as I expect it to.

it is because the driver only use speaker+lo playback volume when loopback
mixing is enabled 


the headphone playback volume is useless until the driver bug is fixed if you
really need to use loopback mixing

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