The default shortcut for switching input source is Super+Space. The conflict is present if you set an alternative shortcut, and pick just Alt+Shift. Please note that alternative shortcuts for switching input source can be controlled from Tweaks (gnome-tweaks or gnome-tweak-tool).
This is a related discussion: https://community.ubuntu.com/t/keyboard-layout-switching-problems-and- poll/2876 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1762952 Title: Switching backwards between applications with Alt + Shift + Tab not possible when using multiple keyboard input methods To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1762952/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs