Ubuntu 14.04 Virtual Machine Switch Desktop environment

Today I installed the new Ubuntu 14 on my physics machine, but it was very slow and slow when I was running. There is no way to toss, so you can only choose another desktop environment.

1. The first step is to install the Gnome-session-fallback package

# sudo apt-get install Gnome-session-fallback

2. Exit the current user login, in the new login window with a small icon in the upper right, you can use this small icon to choose the desktop environment after login. Here you need to choose GNOME Flashback (metacity).

3. Congratulations, the desktop environment has become a metacity, now ... Fast, fast, very fast.