Problem with display of Samsung tab s8

[KGagan]

The screen turns of itself without any reason even the screen timeout is of long duration

The tablet turns itself off automatically within a minute. 

How can I resolve this problem 

I've restarted my device but nothing seems to work 

[cs_member10]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We acknowledge your query and apologize for the same. We request that you kindly visit the service center for a physical inspection of your device. You can locate your nearest service center with this given link: https://www.samsung.com/in/support/service-center/

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support

[Aneeq01]

Do you use a case?

[KGagan]

Yes I do and it's a flip cover

[Aneeq01]

If the front portion folds.....fold it completely and turn it to the back side....check if screen goes off