Apple Studio Display is showing ellipsis animation and going completely black afterwards

Today when I woke up my computer, I was expecting the display to wake up. Instead I saw ellipsis(3 dots). There is nothing else displayed on the monitor or on my laptop's builtin monitor.

I contacted Apple support, they suggested I should take my display to Apple Store for service.

Is there anything I can do before going to Apple Store? Especially I am wondering the meaning of ellipsis animation when the display is plugged into power. Is there a troubleshooting guide for this device?

Thanks for your insights.