How to disable window effects in 15.04?

Solution 1:

  1. Install Unity Tweak Tool by running the following in a terminal:

    sudo apt-get install unity-tweak-tool
    
  2. Start Unity Tweak Tool via Dash or run unity-tweak-tool in a terminal.

  3. In the Window Manager section, press the General icon.

    General

  4. In the Animations section, set Window Animations to off.

    Off