Thanks for your report. It works fine for me on g-c-c 1:3.28.0-0ubuntu6.
The command line way to set it for left-handed is: gsettings set org.gnome.desktop.peripherals.mouse left-handed true and to see the current setting: gsettings get org.gnome.desktop.peripherals.mouse left-handed Changing that value is what the GUI in g-c-c is for. Can you please check, through the latter command, if the value is changed when you use g-c-c? ** Changed in: gnome-control-center (Ubuntu) Status: New => Incomplete -- 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/1758306 Title: Cannot switch mouse primary button in GCC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1758306/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs