Q:

How to get the onscreen keybord appear on login

I am using Lubuntu 13.10 and I have missing keys on my keyboard. I am using a friend keyboard currently and I want to know how to get the onscreen keyboard to appear on the login screen so I can use my laptop anywhere.

A:

Lubuntu does not come with a screen keyboard installed, nor is the option enabled on the log-in screen by default or even after installing a virtual keyboard.
So first, install a screen keyboard. I recommend Onboard, the default in Ubuntu. Open a Terminal window and enter:
sudo apt-get install onboard

Type your password and hit enter. When that's done processing, you need to enable it on the login screen. A simple matter of editing a config file to tell it you have a keyboard that it can use. Enter the following in your Terminal window:
In Lubuntu 14.04:
sudo leafpad /etc/lightdm/lightdm-gtk-greeter.conf

In Lubuntu 15.10:
sudo leafpad /etc/lightdm/lightdm-gtk-greeter.conf.d/30_lubuntu.conf

You can substitute "leafpad" (the default text editor in Lubuntu) with the editor of your choice. Scroll to the bottom and you should see a line like:
#keyboard=

You just have to specify onboard and then un-comment the line by removing the hash symbol before "keyboard" like so:
keyboard=onboard

Now save the file and close the editor. To test it, just log out. You'll be back at the login screen. Click the Universal Access icon (the little man), then On Screen Keyboard. If everything's set up right, onboard should now appear on your screen.

