Reproduction steps:
1. Open the attached “BugRepro” project
2. Click File > Build
3. Open Ubuntu in console mode (CTRL + ALT + F2)
4. Log in to Ubuntu user
5. Kill the Gnome Desktop Enviroment with ‘sudo service gdm stop’
6. Change the directory to the build folder
7. Start the Player with 'sudo xinit ./<build>.x86_64 – :0'
Expected result: Moving the mouse within the Unity Player also moves the mouse pointer.
Actual result: The mouse pointer in the Unity Player does not move in response to mouse movement.
Reproducible with: 2020.3.46f1, 2021.3.21f1, 2022.2.11f1, 2023.1.0b8, 2023.2.0a6
Reproducible on: Ubuntu 22.04
Note: Touchscreen works on a Ubuntu laptop