When typing in grouped modus characters appear double in other split-screen

My installed packages (who knows i may have caused a conflict somewhere):
about-distro 1.0.0-0ubuntu2 amd64 KCM displaying distribution and system information
accountsservice 0.6.35-0ubuntu7 amd64 query and manipulate user account information
acl 2.2.52-1 amd64 Access control list utilities
acpi-support 0.142 amd64 scripts for handling many ACPI events
acpid 1:2.0.18-1ubuntu3 amd64 Advanced Configuration and Power Interface event daemon
adduser 3.113+nmu3ubuntu3 all add and remove users and groups
akonadi-backend-mysql 1.11.0-0ubuntu1 all MySQL storage backend for Akonadi
akonadi-server 1.11.0-0ubuntu1 amd64 Akonadi PIM storage service
akregator 4:4.11.2-0ubuntu2 amd64 RSS/Atom feed aggregator
alsa-base 1.0.25+dfsg-0ubuntu4 all ALSA driver configuration files
alsa-utils 1.0.27.2-1ubuntu2 amd64 Utilities for configuring and using ALSA
amarok 2:2.8.0-0ubuntu3 amd64 easy to use media player based on the KDE Platform
amarok-common 2:2.8.0-0ubuntu3 all architecture independent files for Amarok
anacron 2.3-19ubuntu2 amd64 cron-like program that doesn't go by time
apg 2.2.3.dfsg.1-2ubuntu1 amd64 Automated Password Generator - Standalone version
app-install-data 13.10.1 all Ubuntu applications (data files)
app-install-data-partner 13.04 all Application Installer (data files for partner applications/repositories)
apparmor 2.8.0-0ubuntu38 amd64 User-space parser utility for AppArmor
apparmor-easyprof 2.8.0-0ubuntu38 all AppArmor easyprof profiling tool
appmenu-qt 0.2.7daily13.05.02-0ubuntu1 amd64 application menu for Qt
apport 2.13.2-0ubuntu5 ...

Okay, i ran into an old bug for Ubuntu that was the same (never saw it before or i would not have posted the bug here). It seems that IBUS in KUbuntu 14.04 is still a problem. I removed it and since it works fine.

I guess this confirms two things
1: It is a bug, but not in terminator
2: IBUS is the cause.

Now to find out what ibus does to make sure i don't need it.