Darrell, Slavek, All,
On your R14 install, open a 'top' or 'htop' window and tell me what your 'tdepowersave' use is.
By far -- tdepowersave is the top CPU user on my build continually taking more than any other process. This is not right. It is using 2x-3x more CPU than X or kded and is continually at the top of the list. It never stops.
What do you see?