I only mentioned the keybindings because I don't use the ctrl-alt-arrow keys (I didn't know them actually). I tried just now and reproduced using them, though.
** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/740985 Title: [gm45] screen artifacts when switching desktops with metacity -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs