Xi Graphics Accelerated-X X Window server

If a screen is to be rotated by the Vario option (Rotating a screen) or if unused input devices should be switched off (Miscellaneous statements),  the XmetaX proxy tries to use a virtual input device for direct control of the device. To configure this device run Xsetup in graphical mode from within an X11 session and register a new virtual mouse pointer input device called NULL Mouse with three buttons, x/y axes and mode different than POINTER. Afterwards, restart the X Window server to make the changes effective. If this does not help, try other combinations of device parameters.

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