X.Org/Dual Monitors/KDE

If you don't like the default KDE behaviour with multiple X Screens, the below is a guide on how to change it.

Disable KDE MultiHead
KDE Session Manager tries to manage all possible screens that are currently running. This default behaviour may be unwanted, e.g. using secondary screen for watching movies, therefore pure X screen is a much better solution.

To disable MultiHead in KDE, edit or  (or ~/.kde/share/config/kcmdisplayrc on current version of Kubuntu) and add following:

Independent Dual Head in KDE 4.2
As You know, in KDE 4.2 no longer supports independent desktops. But there is possible workaround, using secondary windows manager for secondary screen. First configure in /etc/X11/xorg.conf two separate screens. Then emerge your preffered light weight window manager (but be careful only few wm are working).

[ebuild  R   ] x11-wm/icewm-1.2.30  USE="esd imlib nls spell truetype xinerama -debug -minimal" 0 kB Now when you boot into kde4.2 you must see on primary monitor normal kde desktop and on secondary monitor X server without wm (mouse cursor have X shape). After start you can type command which start secondary wm

If all is working and secondary wm is started on secondary monitor, then you can add this command after kde start into startup directory.

Non KDE environment aware windowmanagers require the "disableMultihead=true" setting, explained in the previous section. For instance classic TWM will run.