Alt-tab not working in unity 2D

[melrokz]

This is a bug in Unity 2D alone in Precise.

Alt-tab key combination does not do anything. I expect it to show a window switcher.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity-2d 5.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
ApportVersion: 1.94-0ubuntu1
Architecture: amd64
Date: Mon Mar 5 21:51:53 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_IN:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: unity-2d
UpgradeStatus: No upgrade log present (probably fresh install)

[Gerry Boland (gerboland)]

Hi,
I'm sorry but I can't reproduce this at all. Can you check in your "System Settings" -> "Keyboard" panel, opening the "Shortcuts" tab, selecting the "Navigation" option in the left pane, and verify that the shortcut for "Switch Applications" is "Alt+Tab"?

Do other global keyboard shortcuts work ok?
Thanks for the report
-G

[John Hanson (crayz9000-g)]

I had the same thing happen after running a bunch of updates. It affected both gnome-session (fallback) and Unity-2d. Turns out that all the navigation keybindings were cleared for some reason. Really no idea why that happened.

Thanks for the pointer, Gerry.

[melrokz (melrockz)]

In Unity 2D, Alt-tab still does not work, even after my last update. It only displays the window controls of the active window.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Tim Kornhammar (tim-kornhammar)]

Solution for me, temporary since it sometimes disapears again.

Go to:
CompizConfig -> Switcher -> Key to start the switcher

Change from Alt+Tab to something else, close, then add Alt+Tab again.

[Tim Kornhammar (tim-kornhammar)]

I can update and say that it happens on _every_ startup and it does not seam like it looses the keybinding during the session thats running.

By just adding 'super+shift' to 'alt+tab', pressing ok, then removing them is the solution. (Don't choose 'ctrl' since then you need to remap by redoing the keycombination, ie. the ctrl does not dissapear.)

[Tom Ellis (tellis)]

I'm seeing this in unity-3d, keybindings are set in the config but not taking affect anymore after some updates.

[Alex Valavanis (valavanisalex)]

I started to notice this after upgrading to 5.7.0-0ubuntu1

[Night Eagle (nighteagle)]

I experienced this problem after upgrade to Precise.
Gerry's suggestion ["System Settings" -> "Keyboard" -> "Shortcuts" -> "Navigation": "Switch Applications" ] indicated no binding for me. I set it to Alt-Tab and that solved the problem for me.

The general proble seems to be that that particular key binding [and I believe any others in that Navigation group) were wiped out or not properly migrated on upgrade.