Display turns off when I restart my macbook pro
Hello guys,
When I restart my macbook pro retina (2013 early) the monitor turns completely off (yeah its logic), but he doesn't turn back on when he is running again, I hear all sounds,the keyboard lightning is on, but the display is off (the apple logo on the back side is also off). So to solve this problem I need co close my macbook and wait for around 3 minutes and the display runs again. So if I want to switch to the windows during restart or run back up I can't do it because my screen is off and I can see anything. I tried to do hardware diagnostic via apple support by pressing D while restarting, but the display is still off and I see anything. I tried to connect my macbook to extern screen (TV) but he doesn't see the HDMI cable connection (I tried 3 HDMI cables and 2 TVs).
Operating system is Yosemite 10.10.4
Can somebody help me pls ?
Thx on advance 🙂
MacBook Pro with Retina display, OS X Yosemite (10.10.4)