I had the same problem and apparently the FF browser updated a shortcut on one of their commands to ctrl+L so if the browser is focused the focused window takes the command over Ubuntu i went into keyboard shortcuts and reassigned the alt+ ctrl+L and it works no matter if the browser is in focus or not YAY
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/184817 Title: unable to lock screen with ctrl - alt - L if numlock is on To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/184817/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs