I don't really know, ibus was started (but I assume because remove effects that accents can be written in KDE now).
But definitely it was installed, because "equo remove..." asked me, and finally removed it.
Exactly, in a Virtualbox, I have a some days older Sabayon, KDE 64 bit, Daily Build from 23/08/2013 and in this version the accents were shown correctly in a KDE application. To mention: I did NOT upgrade this in Virtualbox.
So, I assume, the problem with lost accents in KDE appeared with upgrades of (many) packages of my Host in last days,
including a new kernel (3.10.9-r1) and a new KDE version (4.11) now.
-Linuxfluesterer (I love KDE ...)
I really hope, that by the Brexit (poor Britain), TTIP will be finally prevented. But don't get tired to talk to your local politician to open eyes for danger to democracy because of TTIP