[Bug 1374997] [NEW] Various KDE applications do not start: "D-Bus connection created before QCoreApplication"

[Estellnb-8]

Public bug reported:

Though the plasma-desktop starts up well some KDE applications refuse to
start with the following messages:

elm at DOTS-E2:~$ krandrtray
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
elm at DOTS-E2:~$  env | grep -i dbus
KONSOLE_DBUS_SERVICE=:1.98
JOB=dbus
KONSOLE_DBUS_WINDOW=/Windows/1
KONSOLE_DBUS_SESSION=/Sessions/2
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-pQSSTOCogO

# systemsettings
QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave.
systemsettings(3718): KUniqueApplication: Cannot find the D-Bus session server:  "Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken." 

systemsettings(3717): KUniqueApplication: Pipe closed unexpectedly.

root at DOTS-E2:/home/elm# env | grep -i dbus
KONSOLE_DBUS_SERVICE=:1.98
JOB=dbus
KONSOLE_DBUS_WINDOW=/Windows/1
KONSOLE_DBUS_SESSION=/Sessions/1
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-pQSSTOCogO

# ps ax | grep dbus
  475 ?        Ss     0:01 dbus-daemon --system --fork
 1272 ?        Ss     0:02 dbus-daemon --fork --session --address=unix:abstract=/tmp/dbus-pQSSTOCogO
 1292 ?        S      0:00 upstart-dbus-bridge --daemon --system --user --bus-name system
 1296 ?        S      0:00 upstart-dbus-bridge --daemon --session --user --bus-name session
 1339 ?        S      0:00 /bin/dbus-daemon --config-file=/etc/at-spi2/accessibility.conf --nofork --print-address 3
 1891 ?        S      0:00 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-interfaces --pid-file=/run/sendsigs.omit.d/network-manager.dnsmasq.pid --listen-address=127.0.1.1 --conf-file=/var/run/NetworkManager/dnsmasq.conf --cache-size=0 --proxy-dnssec --enable-dbus=org.freedesktop.NetworkManager.dnsmasq --conf-dir=/etc/NetworkManager/dnsmasq.d
 3721 pts/7    S+     0:00 grep --color=auto dbus

The desktop manager in use is KDM. KDE has been installed manually after
getting the core system from a Linux magazines lubuntu CD.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: kde-plasma-desktop 5:78ubuntu13
ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
Uname: Linux 3.13.0-36-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.4
Architecture: amd64
CurrentDesktop: KDE
Date: Sun Sep 28 17:45:22 2014
SourcePackage: meta-kde
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: meta-kde (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug trusty

** Attachment added: "kdm.log"
   https://bugs.launchpad.net/bugs/1374997/+attachment/4218297/+files/kdm.log

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https://bugs.launchpad.net/bugs/1374997

Title:
  Various KDE applications do not start: "D-Bus connection created
  before QCoreApplication"

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