This still is a problem, even on Ubuntu 17.10 under some (unknown) conditions. Mine used to work with my current mouse, but I went to adjust it today, and it's not there. I have no touchpad, only a mouse; it's a desktop machine.
Sometimes I can plug in a mouse that will make the slider show, but there doesn't seem to be any correlation between what mouse makes it show up... even if it's the same dang thing: lsusb | grep -i logitech Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver (no speed control) lsusb | grep -i logitech Bus 002 Device 012: ID 046d:c52b Logitech, Inc. Unifying Receiver Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver (speed control available) ** Attachment added: "screenshot of missing control" https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1132063/+attachment/5061293/+files/Screenshot%20from%202018-02-23%2012-21-24.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1132063 Title: Mouse settings missing from Mouse & Touchpad dialog To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1132063/+subscriptions -- ubuntu-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs