My Mac Pro laptop screen won’t come out of a dark screen

AndromydaValentine Said:

"My Mac Pro laptop screen won’t come out of a dark screen: I pressed command R as I read. Laptop came out of it for a minute or so and then went black again. Does anyone have any idea what might be wrong or how to fix it. Thank you"

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Troubleshooting a Black Mac Screen:

• Go Here: If your Mac doesn't Turn On or Start Up - Apple Support
• Using External Devices: Try resetting the SMC and NVRAM , but this time, using an external keyboard. Connect an external monitor and see if you get an output.