- sh -c "sleep 10 && dconf write /org/compiz/profiles/Default/plugins/composite/refresh-rate "60" &"
And this in the second one;
- sh -c "sleep 10 && dconf write /org/compiz/profiles/unity/plugins/composite/refresh-rate "60" &"
Then install the package "dconf-editor", you can do it in a terminal by;
- sudo apt-get install -y dconf-editor
Just a note, if your refresh rate is higher/lower than 60 then please adjust the number in the code above. This has been tested on Ubuntu 13.10 using the gnome-fallback session
Here is a picture showing you how the startup application box should look.