Random black macbook pro screen, not dead, fixes itself when I connect to external display

parisa59 wrote:

i do have back light. and there are no vertical lines on my display. i don't think i will qualify for this program

check your coverage

https://support.apple.com/my-support

In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"—

https://www.apple.com/retail/geniusbar/

Outside the USA

https://locate.apple.com/country

Learn how to get your Mac fixed and how much it will cost.   https://support.apple.com/mac/repair/service

Get your Mac ready for service - Apple Support   https://support.apple.com/en-us/HT209095

parisa59 wrote:

I have a macbook pro 2016 retina. I started to get random black screen since a few days ago. there is a small white line on the left corner of the screen. the backlight works and the laptop is working, I can hear sounds and when I screenshot it shows my normal screen. when I close the lid and reopen, the problem fixes for a few minutes. when I connect it to an external display via HDMI cable, it works normally. I reset my PRAM and SMC and updated to the latest version of OS. I could not find anyone with a similar problem online. does anyone have an idea what might be the problem?

So you have a display issue

See if you qualify—Service Program—

https://www.apple.com/support/13-inch-macbook-pro-display-backlight-service/