In Ubuntu 12.04, when you move a window such that it touches the top corner, the window automatically maximizes to full screen. This tutorial will explain you how to disable this feature.

This Windows 7 aero like feature is controled by Grid plugin in CompizConfig Settings Manager. When you move a window to right corner, it resize to right half. When move to left corner, if resize to left half.

Here’s how to configure in Ubuntu 12.04:

  • 1. Install CompizConfig Settings Manager by executing this command in terminal (press Ctrl+Alt+T to launch terminal):
    sudo apt-get install compizconfig-settings-manager
  • 2. Launch CCSM, and click to go into the configuration page of Grid. Under Edges tab -> Resize Actions. Set the value of Top Edge to none.