In Settings -> Mouse & Touchpad I only see settings for a mouse, when I am using a touchpad. This prevents me from middle clicking with a 3 finger tap on my touchpad which is a critical function for someone who spends a great deal of time working at the terminal.
How can I get Ubuntu 18.10 to recognize my Touch Pad? Installing xserver-xorg-input-synaptics as recommended other places did not help. It still treats it as a mouse, but not being an actual mouse, but being a touch pad, I can't middle click or simultaneously left and right click.
xinput shows the following...
$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ VirtualBox mouse integration id=9 [slave pointer (2)]
⎜ ↳ VirtualBox USB Tablet id=10 [slave pointer (2)]
⎜ ↳ ImExPS/2 Generic Explorer Mouse id=12 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Sleep Button id=7 [slave keyboard (3)]
↳ Video Bus id=8 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)]
VirtualBox has limited direct access to hardware.
That is why your touchpad can't be managed by a full-feature driver with multitouch capabilities.
You need to install Ubuntu directly for a full-feature touchpad. But that doesn't guarantee that the specific touchpad is fully supported by Linux kernel.