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Since upgrading to 12.04, my alt-tab occasionally does not work. I cannot determine the symptoms that lead to it, but there are some windows that just decide not to show. What happens is I alt-tab to a given window, say the terminal, and instead of showing it, I just see it wobble like a notification in the list of programs down the left. Is this a bug?

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marked as duplicate by Eric Carvalho, Raja, aquaherd, Thomas Ward, Mitch May 11 '13 at 17:58

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Isn't this a bug, and so off-topic for the site? – Tom Brossman Dec 4 '12 at 9:31
up vote 36 down vote accepted

Yes, I noticed that too! I'm surprised they forgot something as important as that.

Install Compiz Config Settings Manager:

To open terminal hit Alt+Ctrl+T and run following commands:

sudo apt-get install compizconfig-settings-manager

Or search for compizconfig-settings-manager in Software Center and install from there.

Then go to system tools > preferences > compizconfig

Go at the very bottom where it says windows management (or something similar to that, my distro is in french)

Put a checkmark in application switcher

That should fix it.

go to system tools > preferences > compizconfig Then, Windows Manager-Application Switcher. click on Next window-alt-tab click it. click on ''Grab key Combination'',here actually use alt+tab, & it will grab it. OK

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Work great! But it is totally crazy! How could I have figured it out from nowhere?... – Mike Aski Jun 13 '12 at 8:47
Unfortunately this didn't work for me, not even in conjunction with disabling the Unity Switcher, but Gordon's suggestion did. – Matthew Read Jul 13 '12 at 18:07
@Matthew Finally got it to work: in ccsm > Ubuntu Unity Plugin > Switcher, ensure <Alt>Tab is set for "Key to start the switcher", then "Back", then click the checkbox (to get it checked) near Ubuntu Unity Plugin - after a few warnings and key conflicts resolution, that should work! – ringø Oct 15 '12 at 5:31
Better yet for gnome classic users: when log in, just ensure (click the foot icon) to start Gnome classic No effects. The no-effect version seems to have Alt-tab working. – ringø Oct 15 '12 at 5:49
In case de Application Switcher is not present, also run "sudo apt-get install compiz-plugins-extra" – Francisco Luz Sep 26 '14 at 19:13

I have Ubuntu 12.04 with gnome-classic (without effects, so no Compiz) and the above doesn't work.

The fix, from here is actually easier than you'd expect:

  • Go to 'Applications','System Tools','System Settings'
  • Click 'Keyboard'
  • Click the 'Shortcuts Tab'
  • Click 'Navigation' on the left
  • In the right-hand pane click on 'Switch applications' and press Alt-Tab to assign that as the accelerator.
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Im also using gnome-classic, my shortcut for switch application is alt+tab and it still does not work... ? – Piero Oct 11 '12 at 14:57
Same problem here. – ringø Oct 15 '12 at 4:41
It stopped working for me as well. I ended up removing .gconf* and .gnome2* folders - it started working. Proper fix would be to remove or edit one of the configuration files, but I do not have time to investigate – Yevgen Yampolskiy Dec 3 '12 at 12:21
it works for me on VB Ubuntu – Coc Dec 30 '12 at 4:51

In case Application switcher, doesnt work (like the 1st answer), check the static application switcher in CCSM. It works fine for me.

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protected by Community Jul 9 '12 at 11:43

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