KDE4 and Dual Monitors

KDE4 has brought a new concept to desktop by Plasma. However, it was not considered that Plasma should work on more than one monitors. It has rumours that KDE 4.2 has a fix for multi-monitoring, this fix is not working. While I was searching for the problem, I found an alternative solution to monitoring on KDE-Forums (It redirects to Gentoo-Wiki).

  1. Backup your xorg.conf file (/etc/X11/xorg.conf ).
    cp /etc/X11/xorg.conf /etc/X11/xorg.conf.backup
  2. Configure your xorg.conf file for dual monitors. I don’t now how ATI is configured, but for NVIDIA you can use nvidia-settings program. You must configure both screen as seperate screen. Your main screen’s height should be greater than second’s and Xinerama should be disabled.  Then click “Save to X Configuration File” and save it.
    nvidia-settings
  3. Install ICEWM by your default repository manager.
    For Gentoo:

    emerge -av icewm
  4. Restart your Xorg server by
    Ctrl+Alt+Backspace.
  5. Open a console then write:
    DISPLAY=":0.1" icewm
  6. If you want to work with “icewm” every start of your computer:
    echo 'DISPLAY=":0.1" icewm &' > ~/YOUR_KDE_FOLDER/Autostart/icewmstart.sh

    If folder name is “.kde”:

    echo 'DISPLAY=":0.1" icewm &' > ~/.kde/Autostart/icewmstart.sh

And then my dual monitors 🙂

dualmonitors

If your second monitor left of the main monitor you can configure xorg.conf file like this:
Find the line:

    Screen      1  "Screen1" RightOf "Screen0"

Then change to:

    Screen      1  "Screen1" LeftOf "Screen0"
kata

This solution does not work.
I have mandriva 2010 updated, kde4. When typing “DISPLAY=”:0.1″ icewm”, an error message says
IceWM: Impossible to open the :0.1. X must be started and
$DISPLAY must be defined.

X is running correctly

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