For some reasons the animations really slow up my Ubuntu virtual machine. How can I disable all the frilly animations?

  • Super Key Dashboard fade-in/fade-out
  • Alt+Tab fade-in/fade-out
  • Other?

There are related questions, but the answer seems to change from version to version, and I haven't found any that work for the Super Key and Alt+Tab animations.

  • 1
    The Unity Tweak Tool is still the easiest way to get this done. There are options to disable the animations you mentioned. – edwinksl Jun 29 '16 at 16:30
  • @edwinksl I found the switch for Window Animatinos, but no settings for Dashboard and Alt+Tab fade. Do you know which settings to use? – jtpereyda Jun 29 '16 at 16:34
  • Try setting the following: 1) Unity > Search > General > Background blur: OFF, 2) Window Manager > General > {Hardware acceleration > Texture quality: Fast, Animations > Window Animations: OFF}. I don't observe any fading in or out when I Alt+Tab, so I can't help you with that. – edwinksl Jun 29 '16 at 16:43
  • @edwinksl Thank you! That seems to speed up animations a bit (kind of hard to tell for sure), though they're still present. – jtpereyda Jun 29 '16 at 16:52
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    The best way to avoid all these issues is to run a, say, Lubuntu VM whose DE is much more lightweight. – edwinksl Jun 29 '16 at 16:56

To super key animation you can try disable background blur, using the Unity Tweak Tool, disabling any suggestion, history, etc, can speed up the super key.

To alt-tab i don't know anything that can disable the effects, but in Unity Tweak Tool you can disable windows animation on the section Window Manager -> General, for me this is very significant to performance.

What you can do to is disable the shadows from windows.

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    Window Manager -> General-> Window Animation -> Off worked for disabling alt+tab animation. – anargund Feb 23 '17 at 0:49

From unity tweak tool go to General and switch off Windows animations as seen below:

enter image description here

If you don't have it, you can install it with sudo apt install unity-tweak-tool.


It turned out I just needed to enable video acceleration in VirtualBox. This was more effective in speeding up my virtual Ubuntu than disabling animations.

  1. Shut down the guest OS.
  2. In VirtualBox Manager, right-click the VM.
  3. Go to Display.
  4. In the Screen tab, check "Enable 3D Acceleration."

EDIT: I didn't read you saying that you don't want to switch versions. I find Synapse a better replacement for the Dashboard and Ubuntu MATE's Alt+Tab displays some handy previews while switching windows. But that's REALLY up to you, in this case. I never found any improvements in disabling visual effects on Ubuntu.

Since Unity is a compiz plugin and its whole functionality depends on the desktop compositing, it's difficult to make it lighter. If someday you get tired of the sluggish performance, try Ubuntu MATE. It's sort of a younger brother of Ubuntu. They share the same theming, same icons, panels, title bar... Nothing else gets that close to providing you a lighter Ubuntu experience. And 16.04 now comes with Mutiny, a left-panel interface similar to that of Unity (with global menus). Distrowatch - Ubuntu MATE. Good luck!

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