How Do I Lock My Ubuntu Screen?

In Ubuntu 18.04, you can use the Super+L shortcut to lock your computer screen. The Super key in the Windows button on your keyboard. In previous versions of Ubuntu, you could use the Ctrl+Alt+L shortcut for this purpose. You can easily view all the keyboard shortcuts from the system Settings utility.

How do I lock my screen display?

Using the Keyboard:

1. Press Ctrl, Alt and Del at the same time.
2. Then, select Lock this computer from the options that appear on the screen.

How do I lock my screen while watching a video?

To lock your phone or iPad screen while watching a video or walking

1. Tap on Guided Access then tap the icon to turn it on (green)
2. Add a passcode or turn on Touch ID.
3. Tap on Accessibility Shortcut to turn it on (green)