[pulseaudio-tickets] [Bug 95411] Bluetooth 2 latency gets ridiculously high after few hours

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95411

--- Comment #9 from Tanu Kaskinen <tanuk at iki.fi> ---
(In reply to Jerome Leclanche from comment #8)
> It's desynced audio/video in all apps. Can be seen in games (playing on
> Wine), movies/music (playing with mpv or in the browser), etc. The latency
> is consistent across all apps.

You mention movies/music. How do you notice with music? If you run "mpv
some_music_file.ogg", does it take unusually long to start or pause? Do you
notice a long startup delay even with "paplay
/usr/share/sounds/alsa/Front_Center.wav"? (Make sure the sink isn't suspended
when testing, because the suspended -> running transition may take some time
that is not interesting.) The original reporter mentioned latencies up to 2
seconds, do you experience equally excessive latencies?

If this really happens with *all* applications, then I request that you check
the volume change delay again, because starting a new stream (e.g. the paplay
test) should have similar delay as a volume change. If they are different, then
that's really weird. Note that the volume change has to be done through
pulseaudio. If you change the volume via a hardware button on the bluetooth
speakers or headset, that's a different volume than what pulseaudio controls
(when talking about a2dp).

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