> Please correct me, but to my knowledge there is no mechanism in place to
> warn users when the Trinity compositor will not work. There are two
> conditions that I am aware:
>
> * An existing xorg.conf contains the following:
>
> Section "Extensions"
>   Option "Composite" "false"
> EndSection
>
> * A packager purposely disables compositor support such as proposed in
> enhancement request 1289: -DWITH_XCOMPOSITE=OFF.
>
> Currently with either condition, the user is allowed to enable the
> compositor, KControl->Desktop->Window Behavior->Translucency, and there is
> no feedback that this is an exercise in futility, which likely will
> confuse most users.
>
> What is the preferred method for informing users why their efforts will
> not succeed, or to inform them that the options are unavailable?
>
> Darrell

A message stating this should be shown in the kcontrol module, and the
corresponding options should be greyed out.

Tim