Title says it all.

Since upgrading from 17.10 to 18.04 Alt+Tab works fine i.e. switches apps cycling forward. But Alt+Shift+Tab does not switch apps backwards.

I went to Settings > Shortcuts and noticed that the shortcut for Switch applications is Super+Tab.

I tried Super+Tab and Super+Shift+Tab and they worked as expected, but i'm hardwired to use Alt+[Shift]+Tab. So I switched this shortcut to Alt+Tab.

Still Alt+Shift+Tab only switches forward, and not backwards.

Changing the shortcut to Super+Tab again works as expected for both forward and backward switching.

Any idea how to make the Alt+Shift+Tab work for backward app switching?


That's because Alt+Shift+Tab in Ubuntu 18.04 is blocked by another shortcut.

Run this command to free alt+shift combination:

gsettings reset org.gnome.desktop.input-sources xkb-options

source1 source2

  • 1
    I was starting to give up! Thanks. Worked like a charm :) – Thalis K. Jul 17 '18 at 7:18
  • 3
    It resets Alt + Shift toggle input source behavior – Piterden Oct 25 '18 at 1:24
  • @Piterden that happened to me too. Did you find a workaround where the two can coexist? For me each one precludes the other. – ErnestScribbler Oct 29 '18 at 14:23
  • Unfortunately I didn't. It's fokken GnomeShell. Honestly, I loved Unity. Why did they get rid of it? – Piterden Oct 30 '18 at 2:02
  • One solution is to abandon Alt+Tab for switching applications, and use Super+Tab instead. Makes more sense. Then, you can have both Alt+Shift for switching keyboard layouts and Super+Shift+Tab for switching applications backwards. – Mike Nakis Apr 23 at 17:32

I was able to resolve it using Gnome Tweaks GUI.

Open Tweaks and go to Keyboard & Mouse, then click - Additional Layout Options: as shown here, ans then uncheck Alt+Shift under Switching to another layout section as shown here

That fixed it for me.

  • god bless you man, it worked! – Exile79 Feb 23 at 17:00

I use Ubuntu 18.04 with KDE and the answer from dima.rus helped me diagnose the problem.

What fixed the problem:

  1. Set the Main shortcuts to Caps Lock in System Settings -> Keyboard -> Layouts -> Shortcuts for Switching Layout which was Alt+Shift
  2. Set the Reverse to Alt+Shift+Tab in System settings -> Task Switcher -> Main -> Visualization -> Shortcuts
  3. Log out and in again to KDE

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