Question My laptop scrren goes black randomly

[amine2201]

My laptop screen randomly goes black lately, the last time it did I used my phone to play music on my laptop using Spotify's app to check if the laptop is still running which it did and the sound worked as normal. I also used win+ctrl+shift+b shortcut to restart the video driver, I did hear a beep, but the screen stays black. I have a lenovo s740-14iil, I want to make sure that it's not related to hardware like faulty GPU but I don't own a converter to use right now. Can the problem be related to the hardware and the laptop would still be running normally except the screen staying black?
PS: When I reboot the laptop, it take several reboots before finally getting the screen to work again.

 

[rgd1101]

test with an external monitor.
but sound like the screen is failing

 

[amine2201]

I'll try to once I'll get an adapter, but I thinks it might be due drivers, since the laptop worked fine after resetting it, I believe that some drivers may not be working perfectly, but can the screen still be black after reboot if it's due to drivers.