The Ask Ubuntu question <https://askubuntu.com/q/963616> reports a similar thing, i.e. that Alt+Shift was set during an update of 17.10 without the OP had asked for it.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1762952 Title: Alternative shortcut for layout switching Alt+Shift unexpectedly set by default Status in gnome-control-center package in Ubuntu: New Status in gnome-shell package in Ubuntu: Confirmed Bug description: Version: Ubuntu 18.04 Final Beta with default Gnome Shell included in 18.04 Steps to reproduce: 1. Define two keyboard input methods in Settings -> Region & Language -> Input Sources 2. Open several applications 3. Observe that application windows can be iterated with Alt + Tab 4. Once application window iteration was begun with Alt + Tab, try to iterate backwards with Alt + Shift + Tab. 5. Try to change keyboard input method switching hotkeys in Settings -> Region & Language -> Input Sources -> Options. 6. Observe that Keyboard shortcut for "Alternative switch to next source" is set to "Alt + Shift" and that keyboard shortcuts can only be changed in Settings -> Devices -> Keyboard -> Keyboard Shortcuts. 7. Observe that the shortcut for "Alternative switch to next source" is not available for configuration in Settings -> Devices -> Keyboard -> Keyboard Shortcuts. Actual state: * Performing step 4 does not select the previous app in application switcher but instead changes keyboard input method. Expected state: * The shortcut for "Alternative switch to next source" can be changed and / or deactivated in Settings -> Devices -> Keyboard -> Keyboard Shortcuts. Notes: * The above was working fine in Ubuntu 17.10. I assume "Alternative switch to next source" did not exist in that version of Gnome Shell. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1762952/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
