Marko Vojinovic wrote: > It's the kernel. > > If you boot into 3.13.10-200, everything works. If you boot into the > latest, 3.14.2-200, desktop effects are dead and kwin works only in 2D > regime. Confirmed. It's not kde-workspace. It is this morning's kernel 3.14.2. With the previous 3.13 kernel, it works fine.