Hello Bholanath_139.
Welcome to the Microsoft Community.
May I ask if you have tried reinstalling the firmware and drivers for the Surface Pro7?
Please refer to the page below to download the driver package for your device and reinstall it to see.
Download drivers and firmware for Surface - Microsoft Support
If reinstalling the driver still has no effect, please refer to the following link to create a repair order:.
Check your Microsoft warranty and create service orders - Microsoft Support
If there is anything unclear, please feel free to leave us a message.
Best regards,
Huy-K | Microsoft Community Support Specialist