Chromium process doesn't close when closing the last window

[Julius Schwartzenberg]

This is how the problem shows:
1. I start up Chromium
2. I close its window
3. I start it again, Chromium complains it can't open its profile

When I run Chromium from a terminal, I see that it doesn't close after I close its window. I have to do an explicit ctrl+c in the terminal (or kill the processes) before I can start Chromium again without having a 'profile in use' warning.

There are *no* extensions installed. The check box to stay active if any background app would be enabled is turned *off* as well.

Terminal output:
$ chromium-browser
Using PPAPI flash.
Loading socket Config module ...
Creating backend ...
Loading x11 FrontEnd module ...
Failed to load x11 FrontEnd module.
[7859:7859:0508/172606:ERROR:logging.h(813)] Failed to call method: org.freedesktop.DBus.ObjectManager.GetManagedObjects: object_path= /: org.freedesktop.DBus.Error.UnknownMethod: Method "GetManagedObjects" with signature "" on interface "org.freedesktop.DBus.ObjectManager" doesn't exist

[7859:7859:0508/172606:ERROR:logging.h(813)] Failed to call method: org.freedesktop.DBus.ObjectManager.GetManagedObjects: object_path= /: org.freedesktop.DBus.Error.UnknownMethod: Method "GetManagedObjects" with signature "" on interface "org.freedesktop.DBus.ObjectManager" doesn't exist

When reporting this bug with ubuntu-bug, it suggested that /etc/chromium-browser/default had been changed. I never changed this file myself. When confirming that it could be attached to this bug report, ubuntu-bug crashed. Only choosing to not add this file, allowed me to report this bug. Here is the content of /etc/chromium-browser/default:

# Default settings for chromium-browser. This file is sourced by /bin/sh from
# /usr/bin/chromium-browser

# Options to pass to chromium-browser
CHROMIUM_FLAGS=""

# part for pepperflashplugin-nonfree : begin

flashso="/usr/lib/pepperflashplugin-nonfree/libpepflashplayer.so"

if [ -f $flashso ]
then
        flashversion=`strings $flashso|grep ^LNX|sed -e "s/^LNX //"|sed -e "s/,/./g"`
        CHROMIUM_FLAGS="$CHROMIUM_FLAGS --ppapi-flash-path=$flashso --ppapi-flash-version=$flashversion"
fi

# part for pepperflashplugin-nonfree : end

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: chromium-browser 49.0.2623.108-0ubuntu0.14.04.1.1113
ProcVersionSignature: Ubuntu 4.2.0-35.40~14.04.1-generic 4.2.8-ckt5
Uname: Linux 4.2.0-35-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CurrentDesktop: KDE
Date: Sun May 8 17:28:46 2016
Desktop-Session:
 'kde-plasma'
 '/etc/xdg/xdg-kde-plasma:/usr/share/upstart/xdg:/etc/xdg'
 '/usr/share:/usr/share/kde-plasma:/usr/local/share/:/usr/share/'
Env:
 'None'
 'None'
InstallationDate: Installed on 2011-09-12 (1700 days ago)
InstallationMedia: Kubuntu 10.04 Trinity LTS "Lucid Lynx" - Release amd64 (20100427)
Load-Avg-1min: 0.12
Load-Processes-Running-Percent: 0.2%
MachineType: Paradigit MS-7673
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-35-generic root=UUID=999e0fb5-ef5b-44e4-a3a5-0e0f6cad9533 ro quiet splash
SourcePackage: chromium-browser
UpgradeStatus: Upgraded to trusty on 2015-01-02 (491 days ago)
dmi.bios.date: 04/14/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V1.11
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P67A-C43 (MS-7673)
dmi.board.vendor: Paradigit
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Paradigit
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.11:bd04/14/2011:svnParadigit:pnMS-7673:pvr1.0:rvnParadigit:rnP67A-C43(MS-7673):rvr1.0:cvnParadigit:ct3:cvr1.0:
dmi.product.name: MS-7673
dmi.product.version: 1.0
dmi.sys.vendor: Paradigit
gconf-keys: /desktop/gnome/applications/browser/exec = b'firefox\n'/desktop/gnome/url-handlers/https/command = b'sensible-browser %s\n'/desktop/gnome/url-handlers/https/enabled = b'true\n'/desktop/gnome/url-handlers/http/command = b'sensible-browser %s\n'/desktop/gnome/url-handlers/http/enabled = b'true\n'/desktop/gnome/session/required_components/windowmanager = b''/apps/metacity/general/compositing_manager = b''/desktop/gnome/interface/icon_theme = b'gnome\n'/desktop/gnome/interface/gtk_theme = b'Clearlooks\n'
modified.conffile..etc.chromium.browser.default: [modified]
modified.conffile..etc.default.chromium.browser: [deleted]
mtime.conffile..etc.chromium.browser.default: 2015-01-04T23:18:52.653034

[Julius Schwartzenberg (jschwart)]

It seems this issue is related to SCIM which is started by Chromium (when it's not started yet?). Removing all the SCIM related packages solved the issue.

I suspect this bug is still present for people that need to use SCIM.

[Paul White (paulw2u)]

Is this still an issue now that Chromium 71.0 is the currently supported version?

[Launchpad Janitor (janitor)]

[Expired for chromium-browser (Ubuntu) because there has been no activity for 60 days.]