Re: Etch netinstl. problem starting kwrite, synaptic, gedit.etc
> Having installed the Etch netinst. I was next looking to install KDE, and
> X.
>
> I ran apt-get install kde, and a whole bunch of packages were installed,
> including some X packages. After these had been installed, I also did an
> apt-get install kdm, as I wasn't sure if it had been installed, and it
> hadn't
> been.
>
> Reboot, and no desktop. Obviously some X stuff is missing.
>
> Now I tried apt-get install xserver, which gave some options, including
> xserver-xorg-core, which is the one I went for, and at the same time
> installed xfonts-75dpi, and xfonts-base. Some time later, and many more
> packages installed, I rebooted.
>
> The reboot went ok, and I was able via KDM to login to KDE.
>
> The problem I'm having is when su'ing to root in KDE's Konsole.
>
> When su'ed to root on KDE's Konsole neither kwrite, synaptic, or gedit
> will
> open. Synaptic is on the K menu, and starting it there will open a window
> asking for the the root password, and entering the root password I can use
> synaptic as root, but trying to open synaptic as root on KDE's Konsole
> just
> fails.
>
> Output from trying to start gedit, kwrite, and synaptic on KDE's Konsole
> below.
>
> [djmons@localhost djmons]$ ssh 192.168.0.197
> djmons@192.168.0.197's password:
> Linux debian 2.6.26.2-rt1-libre1 #1 SMP PREEMPT RT Sun Aug 10 13:45:05
> EEST
> 2008 i686
>
> The programs included with the Debian GNU/Linux system are free software;
> the exact distribution terms for each program are described in the
> individual files in /usr/share/doc/*/copyright.
>
> Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
> permitted by applicable law.
> Last login: Sat Aug 23 14:52:38 2008
> djmons@debian:~$ su
> Password:
> msu: Authentication failure
> Sorry.
> djmons@debian:~$ su
> Password:
> debian:/home/djmons# synaptic
> X11 connection rejected because of wrong authentication.
> The application 'synaptic' lost its connection to the display
> localhost:10.0;
> most likely the X server was shut down or you killed/destroyed
> the application.
> debian:/home/djmons# kwrite
> X11 connection rejected because of wrong authentication.
> kwrite: Fatal IO error: client killed
> debian:/home/djmons# gedit
> X11 connection rejected because of wrong authentication.
> The application 'gedit' lost its connection to the display localhost:10.0;
> most likely the X server was shut down or you killed/destroyed
> the application.
> debian:/home/djmons#
>
> Any pointers as to what may be the problem here, gratefully received.
>
> Nigel.
>
>
>
>
>
>
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>
the basic problem is that you are launching these programs as root, but
your desktop is running as your user. So after su'ing run "export
DISPLAY=localhost:0" and as a user run "xhost localhost".
The export command sets the DISPLAY variable to your local machine, this
variable is how X apps figure out what X server to connect to. The xhost
command allows programs running on your local machine to connect to your
desktop.
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