GNOME Bugzilla – Bug 574718
Full screen video is slow due to compositor
Last modified: 2009-11-18 18:39:57 UTC
There should really be no reason to have the compositor enabled while showing fullscreen video; XFCE I believe has a feature to automatically disable its compositor when showing a fullscreen window. Almost anything would be better than having to open a terminal and run gconftool-2 --type bool --set /apps/metacity/general/compositing_manager false everytime I want to watch a movie.
Not using a compositor for fullscreen windows is basically what bug 518712 is about (but the title of the bug doesn't reflect this, so no wonder if you missed it).
*** This bug has been marked as a duplicate of bug 562669 ***