How can I troubleshoot a non-responsive touch screen in my Audi A6?

The touch screen in my Audi A6 has suddenly stopped responding to touch inputs. What can I do to troubleshoot and fix this issue?

Try a soft reset first by pressing and holding the power button for 10 seconds. If that doesn't work, try disconnecting and reconnecting the car battery.

Check if the touch screen is enabled in the car's settings. If it is, try cleaning the screen with a microfiber cloth to remove any dirt or debris that may be causing the issue.