[pulseaudio-discuss] Silencing plops / click sounds on start / stop of playing audio when snd_hda_intel.power_save=1

[Hans de Goede]

Hi All,

For Fedora 28 we plan to ship the kernel with snd_hda_intel.power_save
defaulting to 1:

https://fedoraproject.org/wiki/Changes/ImprovedLaptopBatteryLife

We've had an update for F27 in updates-testing for a while which made
the same change for F27, but we've received several bug reports
about plops / click sounds on start / stop of playing audio:

https://bugzilla.redhat.com/show_bug.cgi?id=1525104

I know others have probably already tried fixing this, but I'm
wondering if there are any ideas how to fix this / things to try?

Ideas of my own:

1) Mute the speakers / headphone output in the mixer before
activating power-saving. Question how hard would it be to
make this happen?

2) Put a delay between various steps involved in turning
things off / on.

Regards,

Hans