How can I connect manjaro kde to a projector for presentation?

I had to make a presentation yesterday and when I connect my laptop to the projector it was only showing the manjaro logo. I couldn’t figure out how to fix it. Can anyone here help me with this issue. I have only two day to fix it and make my presentation. I use lenovo thinkpad T440s.

Click on the display button on your laptop. You can mirror your screen or extend it or other options.

I assume that manjaro logo is your background picture. Your display was probably just extended, you could have just dragged the presentation to that screen.

Press Mod Window) + P key and select Unify Outputs.

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