It is not GTK related (then we would have it without compiz, too). It could be compiz or driver related. With intel driver 2.7.1 I do not have this problem, so I assume it is driver related. I am changing the affected package from matplotlib to xserver-xorg-video-intel.
It is not GTK related (then we would have it without compiz, too). It could be compiz or driver related. With intel driver 2.7.1 I do not have this problem, so I assume it is driver related. I am changing the affected package from matplotlib to xserver- xorg-video- intel.