Sound disappears on KDE 5 logout/relogin

[akontsevich]

Sound disappears on logout/relogin. Problem is in pulseaudio process which remains from previous login session. Killing it solves the problem - new instance start automatically then and sound plays again. In KDE bugzilla they said it is a SDDM problem: https://bugs.kde.org/show_bug.cgi?id=385829#c1

Citation:

Then that's not a plasmashell problem. Whether SDDM should clear up stray processes, is up for debate (on the SDDM tracker), but there's some complexities there.

[rdieter]

I'd argue this isn't sddm's job either. pulseaudio's default timeout before exiting is 30 seconds, either wait that long before logging in again, or reduce it to satisfy your needs, /etc/pulse/daemon.conf:
exit-idle-time = 5
for example.

[plfiorini]

A desktop environment that starts programs and doesn't terminate their processes at logout has clearily a bug that shouldn't be attributed to a login manager.

[akontsevich]

A desktop environment that starts programs and doesn't terminate their processes at logout has clearily a bug that shouldn't be attributed to a login manager.

Why KDE team says it is a SDDM bug?! Could you discuss with them please?

[plfiorini]

This doesn't happen with Liri for example, there the session manager launches autostart programs (including /etc/xdg/autostart/pulseaudio.desktop) and SIGTERM and SIGKILL if needed are sent to the process upon logout.

@davidedmundson Plasma should just keep track of the processes it starts and kills them on logout. Is it possible?

[rdieter]

logind supports (something like) that too (logind.conf : KillUserProcesses=yes )