If you have an external display available, attach it to your system to change the computer's display configuration. This should have the system autodetect the connected hardware again and hopefully trigger the display to work again. If the display stops working, you can try pressing the Control-Shift-Eject keys to force the display to reset.
![blink pro mac blink pro mac](http://operfstat.weebly.com/uploads/1/3/2/9/132954434/440287063_orig.jpg)
Use keyboard shortcuts to force the display to reset Then release the keys and allow the system to boot normally, and the PRAM will be reset.
![blink pro mac blink pro mac](https://c1.neweggimages.com/ProductImageCompressAll1280/22-236-358-06.jpg)
After resetting the PRAM, when you initially turn on the system just hold down these keys and allow the system to cycle through a couple of automatic resets. The PRAM on the system can be reset by holding down the Option-Command-P-R keys immediately when the system is turned on. Release them and then press the power button to turn on the system and then immediately reset the PRAM. Then press the Left Shift-Control-Option keys and the power button at the same time. If your computer does not have a removable battery, shut it down and remove all peripheral devices but keep the power adapter plugged in. Plug in the battery and power, turn it on, and immediately reset the PRAM. Press and hold the power button for 5 to 10 seconds and then release it. Then if your computer has a removable battery, remove it and unplug the power from the system. To do this, first turn off your system and unplug all peripheral devices. Meanwhile, although it is annoying the problem will not hurt your system and can be overcome by the following potential fixes and workarounds:Ī few people have had success by resetting the SMC and PRAM. Unfortunately though it is definitely one that is out there, Apple has yet to issue a fix for it, so chances are that it will not be addressed any time soon. Recently, a MacFixIt reader contacted us asking about this problem. The computer does not seem to crash when this is happening, but rather the display is just not connected.
![blink pro mac blink pro mac](https://cdn.wallapop.com/images/10420/db/5c/__/c10420p804784996/i2758905138.jpg)
When using the computer for a while, the display will turn black and sometimes will come right back on but other times will stay off until the system is restarted. One problem that has been affecting some MacBook Pro users for some time is an intermittent blinking or shutting off of the display.