[Bug 216402] New: KDE 4.3 cannot be started within a virtual X Window System (Xvnc)

[Axel Keller]

https://bugs.kde.org/show_bug.cgi?id=216402

           Summary: KDE 4.3 cannot be started within a  virtual X Window
                    System (Xvnc)
           Product: kde
           Version: unspecified
          Platform: openSUSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: Axel.Keller at mucl.de


Version:            (using KDE 4.3.1)
OS:                Linux
Installed from:    openSUSE RPMs

Server
System:        LINUX openSUSE 11.2
Desktop:    KDE 4.3
Problem:    KDE cannot be started with startkde from a virtual X Window
Session.
        Case a: vncserver is started as standard user,
        DISPLAY environment variable value other than :0.0
        causes an error.
        Case b: vncserver is started as root,
        dbus is not available.
Case a
------
Step1:        Starting vncserver as user axel: 
        New 'X' desktop is Haydn:5
Step2:        Starting vncviewer (Web): http:/haydn:5805
        For this the script /home/axel/.vnc/xstartup is used
        that opens an xterm
Step3:        Starting KDE with script startkde
        the openSUSE start screen can be seen shortly,
        but then the following error messages appear:

axel~> startkde
startkde: Starting up...
kdeinit4: preparing to launch /usr/lib/libkdeinit4_klauncher.so
kdeinit4: Communication error with launcher. Exiting!
kdeinit4_wrapper: Warning: connect(/home/axel/.kde4/socket-Haydn/kdeiniled: :
Connection refused
Could not register with D-BUS. Aborting.
startkde: Shutting down...
kdeinit4_wrapper: Warning: connect(/home/axel/.kde4/socket-Haydn/kdeiniled: :
Connection refused
Error: Can not contact kdeinit4!
startkde: Running shutdown scripts...
startkde: Done.
axel~>

Analysis:    In script startkde the the program
        /usr/lib/kde4/libexec/start_kdeinit_wrapper
                   +kcminit_startup
        is called. This routine works with value
        $DISPLAY=:0.0 but not with value $DISPLAY=:5.0 
        that has to be used here.

Case b
------
Step4:        Starting vncserver as user root: New 'X' desktop is 
        Haydn:5

Step5:        Starting vncviewer (Web): http:/haydn:5805
        For this the script /root/.vnc/xstartup is used 
        that opens an xterm

Step6:        Starting KDE with script startkde
        the openSUSE start screen can be seen shortly, 
        but then the following d-bus error message appears:

# startkde
startkde: Starting up...
startkde: Could not start D-Bus. Can you call qdbus?

# qdbus
Could not connect to D-Bus server: org.freedesktop.DBus.Error.NoReply: 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.

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