[pulseaudio-tickets] [Bug 93855] Module restore restores volume and mute settings from wrong sink input

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93855

--- Comment #5 from Leonard den Ottolander <leonard-rh-bugzilla at den.ottolander.nl> ---
> The intended behaviour is that when you set volume for mpg123,
> the volume of all future instances of mpg123 will get that same volume

I am setting the volume for individual streams which all happen to be mpg123
instances. This causes all three sink inputs to be identified with the same
identifier string, the application name in this case.

As you can see from my example, the three streams all have different volume
settings. At a certain point I set the volume for si 11664 to 9%. A little
while later si 12022 gets restored as 12023. But instead of setting the volume
to the 33% which was the setting on si 12022, si 12023 now takes its volume
from si 11664, the one that was last modified.

This behaviour is not limited to the volume setting, but also to the mute
setting. This means that on restoration streams get muted and unmuted
spontaneously. If you argue this is intended behaviour I'm stumped.

Perhaps a mechanism that can both identify a stream as part of a group /and/
individually is desired. But on sink input restoration I expect the restored
stream to use the same volume and mute setting and not suddenly take on the
settings of a random other stream that happens to use the same application
name...

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