Upstream has fixed this in git but until 3.8.4 comes out it would be good to get this patched in. https://git.gnome.org/browse/mutter/commit/?h=gnome-3-8&id=7b36dcf4a06bbb69231ab360356c269f9e7ccce8 More info at https://bugzilla.gnome.org/show_bug.cgi?id=701224 I only had to apply the mutter patch for OpenGL redirection to be fixed. Reproducible: Always Steps to Reproduce: 1. Install mutter 3.8.3 2. Run full screen OpenGL game such as Heroes of Newerth 3. See performance is shit, especially after switching to the desktop and back to the game.
*mutter-3.8.3-r1 (28 Jul 2013) 28 Jul 2013; Pacho Ramos <pacho@gentoo.org> +mutter-3.8.3-r1.ebuild, -mutter-3.8.2.ebuild: Apply upstream fixes from 3.8 branch, also solving some games running slow. Drop old
