That happening for a long time, just is not really easy to be see on X11, separate all things to have more that one thread will also contribute to solve this old issue: https://bugzilla.gnome.org/show_bug.cgi?id=687362
That happening for a long time, just is not really easy to be see on X11, separate all things to have more that one thread will also contribute to solve this old issue: https:/ /bugzilla. gnome.org/ show_bug. cgi?id= 687362