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Bug #7993

pulseaudio process does not close on logout

Added by Nikola M. almost 4 years ago. Updated almost 2 years ago.

Status:
New
Priority:
Normal
Assignee:
OI Userland
Category:
OI-Userland
Target version:
Hipster
Start date:
2017-03-21
Due date:
% Done:

0%

Estimated time:
Difficulty:
Bite-size
Tags:
needs-triage

Description

When running MATE desktop session, and log out (from GUI session),
I can see that 2 processes stay active: gam_server and pulseaudio.
Where gam_server closes itself after minute or two, pulseaudio user process stays active and does not close after user logout.

I suppose pulseaudio should close after user logged out and not stay active.

#1

Updated by Gary Mills over 2 years ago

I'm seeing exactly the same problem. Here's my copy during a desktop session:

     UID   PID  PPID   C    STIME TTY         TIME CMD
   mills    67     1   0   Jul 12 ?           0:03 /usr/bin/pulseaudio --start --log-target=syslog

As you can see here, pulseaudio has already daemonized itself, becoming a child of process 1 (init). In this state, it can't respond to a desktop logout. It needs to remain a child of the process that started it, probably mate-session, so that it can receive the logout signal correctly.

#2

Updated by Ken Mays over 2 years ago

Please update your system to current and state the current condition.

#3

Updated by Tim Mooney almost 2 years ago

I just checked latest hipster and the same issue is still present.

Gary might be correct, but based on the small amount of research I've done this afternoon, I'm not 100% convinced that pulseaudio is designed to be a child of the session. It seems like the default behavior (daemonize and run as the user) is what's happening here. I don't know if other distributions are using a session-cleanup-script with lightdm to run 'pulseaudio --kill', or something else is happening to shut it down on session exit.

I have found the first answer here https://unix.stackexchange.com/questions/204522/how-does-pulseaudio-start to be very useful, as it does appear that's how pulseaudio is being started on hipster too.

Tim

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