Ubuntu Troubleshoot: Fixing missing and flickering mouse cursor

After fresh install Ubuntu I found that sometimes my mouse cursor is missing and flickering so much. In order to solve this problem we need to disable unknown displays settings as explained below.

1. Open Displays settings from Ubuntu Start Menu.

Open Displays Settings

2. If you are lucky you will see two rectangles shape in the Displays window (red and green). Click on the green colored rectangle with "Unknown Display" on it, as seen below.

Displays Settings "Unknown Display"

3. As you can see in previous image, the Unknown Display is turned on. Click on the switch to turn it off. Then click on "Apply" button.

Turned off Unknown display

That's how I fixed my problem with the mouse cursor. If you find this tips helpful, please leave a comment below. Thank you :)