I read more, its part of the unity overlay-scrollbar problems.
LIBOVERLAY_SCROLLBAR=0 emacs24 worked. (well with a backported quantal emacs24, but it had the same problem.)
I read more, its part of the unity overlay-scrollbar problems.
LIBOVERLAY_ SCROLLBAR= 0 emacs24 worked. (well with a backported quantal emacs24, but it had the same problem.)