Black screen when opening turned on macbook pro

  Lars_ak 15:45 06 Apr 2019

When I open my macbook pro (when turned on) the screen is black. This problem has suddenly happened. I can turn off the macbook by holding the "on" button and there's no problem with the screen when I turn it on afterwards.

Any ideas what is causing this problem? Model: medio 2009

  Lars_ak 19:03 10 Apr 2019

Found a solution: reset NVRAM (ALT+CMD+R+P after reboot)

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