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The black screen issue could be due to display drivers. Without the correct driver, the hardware or device that you want to use won't work properly.
Please answer the following question so that we can help you.
Which Build is currently installed?
Was it working fine earlier?
I suggest you to follow the methods below and check if it helps.
Disconnect all the external devices (printers, scanner, USB (universal serial bus) drives, etc...) Except mouse and the keyboard and then boot up to check if you still get the black screen.If this corrects the issue then add the devices back one at a time until you discover the piece of hardware causing the issue. Then get updated drivers software for that particular device.
Method 2:Safe Modewith Networking
I suggest you to boot the computer to Safe Mode with Networking and update the drivers:
Refer the article to boot to Safe Mode with networking: