Problem running kcontrol from menu

Ryan Daly daly at
Mon Nov 12 20:56:24 GMT 2007

On Mon, 2007-11-12 at 21:03 +0100, Kevin Krammer wrote:
> On Monday 12 November 2007, Ryan Daly wrote:
> > On Mon, 2007-11-12 at 09:37 -0500, Ryan Daly wrote:
> > > > I am afraid I am out of ideas, especially since it also happens with a
> > > > new user account.
> >
> > I did a bit more digging and found something.  I started to look into
> > the Categories in the various .desktop files that come with KDE.
> >
> > It appears that the default Categories line in KControl.desktop...
> >
> > Categories=Qt;KDE;Core;
> >
> > causing a problem.  If I remove "Core;" so the line looks like...
> >
> > Categories=Qt;KDE;
> >
> > ...the Control Center starts with no problem.  And, I see:
> Weird, my KControl.desktop files does have this third category but they still 
> work.
> According to the spec [1] "Core" is one of the registered Categories.
> Can you check if it makes a difference when you reorder the three list items?
> (e.g. Qt;Core;KDE)

The order does not seem to matter.

If I remove all but Core, it does not start.  If I remove just Core,
things are OK.

Also, if I add another valid category to the list, things are OK.

> Do any of the .desktop files installed in /usr/share/applications 
> contain "Core" or "Settings"?

Since my $prefix is different, I looked
in /opt/kde/v3.5.7/share/applications.  I found the following:

: riddler 55#; fgrep \;Core\; *

: riddler 56#; fgrep \;Settings\; *

The only problem is I'm not sure where in the menu structure these files
live so that I can attempt to start them.

> > You'll probably know the answer to this or at least where to find it,
> > but is it possible that KDe doesn't recognize "Core" and "Settings" as
> > menu categories?  Is it possible that's what the root of the problem is?
> No, that shouldn't be the cause.
> The KControl.desktop file from our repository [2] contains the "Core" part and 
> I am pretty sure this would have been removed if it weren't supported.

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