For ThinkPad X220, or X230 tablet running Ubuntu Desktop, there’s an open-source project thinkpad-scripts for screen rotation, docking etc.

Thinkpad-scripts is a collection of scripts intended for the Lenovo ThinkPad X220 Tablet. You can still use them with the regular X220 machine, but only thinkpad-rotate will probably be useless for you then.

In short, this script fixes or improves the following:

• Rotation of the internal screen and any Wacom touch and pen input devices using the bezel buttons or physical screen rotation
• Get the microphone mute button to work.
• Automatically use any external monitor, speakers and LAN connection when docking onto an UltraBase or similar.
• Ability to disable touch pad or touch screen.

How to Install Thinkpad-Scripts in Ubuntu 16.04, 14.04:

The scripts are available in the PPA repository, so far available for Ubuntu 16.04, Ubuntu 14.04 and their derivatives.

1. Open terminal (Ctrl+Alt+T) and run command to add the PPA:

sudo add-apt-repository ppa:martin-ueding/stable

2. Then update and install the scripts:

sudo apt update

sudo apt install thinkpad-scripts

For documentation, go to this page.

Uninstall:

To uninstall the scripts, simply run command:

sudo apt remove thinkpad-scripts && sudo apt autoremove

And the PPA can be removed by going to System Settings -> Software & Updates -> Other Software tab.