I've had this problem also some time ago. I could only fix it at my monitor (tv) which is a Samsung with 23 inch. After set in that monitor (sorry, I don't remember, were) all my screen output was displayed correctly.
One thing, I remember: When I've connected my notebook with that monitor via VGA cable, there was no problem at all. HDMI made the problems.
-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