[Konsole-devel] [Bug 132295] New: New Root Shell responds 'Gtk-WARNING **: cannot open display:' at any graph. app. launch command

[Amed]

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http://bugs.kde.org/show_bug.cgi?id=132295         
           Summary: New Root Shell responds 'Gtk-WARNING **: cannot open
                    display:' at any graph. app. launch command
           Product: konsole
           Version: unspecified
          Platform: Debian testing
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: konsole-devel kde org
        ReportedBy: amed adriacom it


Version:            (using KDE KDE 3.5.3)
Installed from:    Debian testing/unstable Packages
Compiler:          gcc 4.0.3; g++ same v. 
OS:                Linux

I start konsole like user, then I launch New Root Session; from this any command to lauch a graphical application don't work: konsole responds like above or '** CRITICAL **: Unable to open display'. 
Rem. that the same operation like normal user works fine. 
It works fine even  as root directly.
Note that this appens with xfce DM (I don't know if its important or not, but it is 4 me).
I think the problem is Konsole tries 2 open a display that can't be open when in user DM.