Hello
Thank you for your question and reaching out. I can understand you are having query\issues related to Surface power button.
Please note that The power button will remain amber in this scenario, and the video input methods will be displayed on the screen (PC, HDMI, VGA, DP).
Reference :
https://techcommunity.microsoft.com/t5/surface-hub/power-button-remains-orange/m-p/860979
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