"[14.04] KDE Login Error "Could not start dbus. Can you call qdbus?"

[Glenn Holmer]

On 04/08/2014 08:46 PM, Bernard Gray wrote:
> Me again - the dist-upgrade on my 14.04 machine today yielded a
> complete KDE Desktop failure. After I login (KDM) it drops me to a
> wallpaper screen with a basic xorg window displaying:
>
>   "Could not start dbus. Can you call qdbus?"
>
> ...and an [okay] button.
> The okay button does nothing when you click it, and my desktop is unusable -

Is there a fix for this? None of the suggestions I've heard work. If I 
can't fix it, I'm looking at a re-install from the latest daily. In the 
meantime, I'm afraid to update the rest of my machines...

-- 
Glenn Holmer (Linux registered user #16682)
"After the vintage season came the aftermath -- and Cenbe."