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Hello and thank you for your question. I look forward to assisting you today. Does this happen while the power supply is plugged in as well or just when you are on battery?
Try just on battery and see what happens please.
Okay, try this for me. Take a flashlight and put it right on the screen and move it around. While you are doing that, look closely to see if you can see any of your desktop icons, or you can even try moving your mouse while holding the light on the screen.
How's it going?
Please let me know when you would like to continue.